Barista Bench

Methodology

How the caffeine study works

By Paul Tanswell · Data checked 2026-10-02

This page sits behind the caffeine study and the espresso page. It lists all 443 servings in the dataset, says which ones went into a figure and why the others did not, and cites all 23 sources.

Which sources count

Sources rank in this order, highest first, and a higher tier beats a lower one:

  1. Systematic reviews and meta-analyses.
  2. Regulator opinions (EFSA, FDA, Health Canada).
  3. Peer-reviewed lab measurements of real drinks.
  4. Government food databases (USDA FoodData Central).
  5. Manufacturer and chain published figures, labelled "declared".

Blogs, caffeine calculators and aggregator sites are never used, not even to fill a gap. Search results were used only to find a paper or a maker's own page; every number was read from that primary document.

The pooling rule

Only lab-measured single servings with a known volume go into a pooled figure. Drinks compared by cup size are scaled to the cup size shown for that drink: caffeine in mg, divided by the serving in ml, times the display serving in ml. Where a source printed a concentration in mg per litre, the serving is 1,000 ml (33.8 fl oz) in that formula. Drinks compared as bought are pooled as served, with no scaling. Scaled to a cup size: Brewed (drip) coffee; Cold brew; Instant coffee; Decaf, brewed. As served: Espresso, single shot; Espresso, double shot; Latte (one or two shots).

The headline figure is the median, with the mean printed beside it; both are rounded to the nearest mg. A drink gets a headline only with at least 20 servings from at least 2 separate studies. One drink clears that bar today: Espresso, single shot.

Volumes appear in ml and fl oz everywhere. Fluid ounces are computed from ml at 29.5735 ml per US fl oz and never typed in by hand.

Judgement calls, in the open

  • Brewed coffee has no pooled headline yet. Only 14 lab-measured filter coffees met the pooling rule, all bought in UK cafes and shops for the UK Food Standards Agency's 2004 survey. That is one study, short of the 20 servings from 2 studies the rule requires. The cup page therefore leads with USDA's reference figure for brewed coffee: 40 mg per 100 g, which is 94.8 mg per 237 ml (8 fl oz), from FoodData Central record 171890. The 14 measured cups appear beside it as a range, 21 to 208 mg at that cup size. McCusker, Goldberger and Cone (2003) measured brewed coffee bought in US coffee shops, but the paper is closed access and we could read only its abstract; its table is the most likely route to a second brewed study.
  • The espresso pool comes from one research group. The 124 single espressos (median 108 mg, range 51 to 322 mg) come from two papers: 20 from Crozier and colleagues (2012) and 104 from Ludwig and colleagues (2014). Both come from the same University of Glasgow group and share authors, and several Glasgow cafes appear in both. We compared every shot in the earlier paper with every shot in the later one and found no duplicate samples: Ludwig's coffees were bought on separate occasions, about two years after Crozier's.
  • The 2004 FSA survey is a regulator's own lab work. The UK Food Standards Agency's Survey of caffeine levels in hot beverages is not a peer-reviewed paper. It sits in tier 3 because what it contributes is laboratory measurement of real drinks. Its samples were analysed as consumed. Retail drinks that needed making up were made by the customer or a member of staff to their own taste, and the survey does not record whether milk was added to each one, so some filter coffees may contain milk, which lowers the caffeine per ml. The survey printed caffeine per litre and the weight served, not a volume, so its rows are entered as concentrations (mg per litre) and scaled to the cup size. 23 of its 199 coffee rows passed the rules. Most of the rest were made at home or at work with no recipe recorded; each one's reason is in the table below.
  • Al-Baqami and colleagues (2023) are excluded. This study measured 24 drinks from coffee shops in Jeddah. The values it reports are 11 to 180 times the top of the 5 to 45 ppm range its own method states. It reports no dilution for the filter coffees and Americanos, and the tenfold dilution it reports for the espressos still leaves them far above the range. We do not trust those numbers enough to pool them. Every row is listed below with the reason.
  • Declared figures are never pooled. USDA reference figures, Starbucks, the energy drinks, the pre-workout and the caffeine pill are figures someone published, not drinks we found measured in a lab. They are shown beside the measured data and labelled as declared, and none of them goes into a median. USDA's espresso figure, 64 mg per 30 ml (1 fl oz) from record 171891, and its brewed coffee figure appear as reference lines on the charts.
  • Medians count servings, not lab runs. A source's sample count does not mean the same thing everywhere. For Crozier and Ludwig, each row is one cup analysed three times in the lab and the row holds the mean of those runs. For Wierzejska and Gielecinska (2024) each row is an outlet mean over 4 to 6 purchases. For the FSA survey each row is one sample analysed once. The pooled medians and means count rows, one per serving, never the lab runs behind them.
  • Wierzejska and Gielecinska printed outlet means only. Their 2024 paper gives a mean and spread per outlet and one mean serving volume per drink type for the whole study, not a volume per outlet or individual servings. Those rows are listed below as excluded, and the volume shown on each is the study-wide mean for that drink type, not a measurement of that outlet's cup.
  • Some measured drinks were made in a lab, not bought. Ludwig and colleagues also made espressos and instant coffees in their own lab, with a stated recipe. The 3 measured double shots, pulled to 22 to 23 ml (0.7 to 0.8 fl oz), are their lab espressos from a dose the paper calls typical of a double shot; the over-extracted versions from the same trial are excluded. Their 8 instant coffees were made at 2 g in 125 ml boiling water. Both sets sit in the measured pools for those drinks, and their rows below give the recipe.
  • Beyond coffee, servings are amounts, not volumes. Dark chocolate is recorded in grams, the pre-workout in scoops and the caffeine pill in caplets, as their labels or USDA state them. Those rows never carry a volume in ml or fl oz.
  • Only Starbucks has chain figures. We looked for published figures from Starbucks, Dunkin' and McDonald's, the three chains with meaningful US search demand for caffeine. Dunkin' publishes caffeine for its hot coffee and espresso but no volume for either, and McDonald's keeps its caffeine values hidden on its US site, so neither has rows. Where a maker's own page blocked us, we read an Internet Archive copy of that same page, and the reference below links the capture.
  • Limits are quoted, not personalised. The limits section reports EFSA's figures as EFSA stated them, including its own per-kilogram equivalents, and the FDA's 400 mg a day. We do not scale those figures to particular body weights.
  • Roast evidence, and its limits. The hub's line on roast rests on Lindsey and colleagues (Scientific Reports, 2024), who brewed two coffees at five roast levels from a fixed 10 g of ground coffee. Roast moved caffeine by a few percent and not in one direction, and how fully the coffee was extracted mattered more. They weighed their coffee and did not test scoops, so the study says nothing about caffeine per scoop of light or dark roast. No serving rows come from this paper; it is listed with the other sources below.

Health wording

The study describes what regulators found ("EFSA found that") and never tells a reader what to do. The limits summary on the hub carries one line saying the page summarises published research and is not medical advice.

This page summarises published research and is not medical advice.

Every drink

Pooled figures per drink. N counts lab-measured servings in the pool; declared drinks show the published figure instead. Data generated 2026-10-02.
DrinkBasis and servingNStudiesMedianMeanMinMaxDeclared reference
Espresso, single shot (headline)As served, 13 to 104 ml (0.4 to 3.5 fl oz)1242108 mg115 mg51 mg322 mg64 mg (USDA FoodData Central)
Espresso, double shotAs served, 22 to 23 ml (0.7 to 0.8 fl oz)31165 mg164 mg152 mg174 mg
Brewed (drip) coffeeScaled to 237 ml (8 fl oz)141103 mg105 mg21 mg208 mg95 mg (USDA FoodData Central)
Cold brewScaled to 355 ml (12 fl oz)no figures yet
Instant coffeeScaled to 237 ml (8 fl oz)16290 mg91 mg31 mg167 mg
Decaf, brewedScaled to 237 ml (8 fl oz)115 mg5 mg5 mg5 mg
Latte (one or two shots)As servedno figures yet
Black tea, brewedScaled to 237 ml (8 fl oz)declareddeclared47 mg declared (USDA FoodData Central), not pooled
Green tea, brewedScaled to 237 ml (8 fl oz)declareddeclared28 mg declared (USDA FoodData Central), not pooled
ColaAs served, 355 ml (12 fl oz)declareddeclared33 mg declared (USDA FoodData Central), not pooled
Red BullAs served, 248 ml (8.4 fl oz)declareddeclared80 mg declared (Red Bull), not pooled
Monster EnergyAs served, 473 ml (16 fl oz)declareddeclared160 mg declared (Monster Energy), not pooled
CelsiusAs served, 355 ml (12 fl oz)declareddeclared200 mg declared (Celsius), not pooled
Dark chocolate, 28 g (1 oz)Per 28 g, USDA referencedeclareddeclared22 mg declared (USDA FoodData Central), not pooled
Pre-workout, one scoopPer 1 scoop, from the labeldeclareddeclared200 mg declared (Cellucor), not pooled
Caffeine pill, one capletPer 1 caplet, from the labeldeclareddeclared200 mg declared (NoDoz), not pooled

Every serving, included or not

All 443 rows in the dataset, grouped by drink. "As recorded" is what the source printed; "Used as" is the figure that went into the pool or onto the charts. Sources link to the reference list below.

Espresso, single shot: 151 rows, 125 used

SampleServing as recordedCaffeine as recordedUsed asSourceTypeStatus
Pattiserie Francoise, Glasgow (Table 1)52 ml (1.8 fl oz)322 mg322 mg as served, in the poolCrozier et al., 2012measuredIncluded
University Cafe, Glasgow (Table 1)49 ml (1.7 fl oz)260 mg260 mg as served, in the poolCrozier et al., 2012measuredIncluded
Cafe Cinnamon, Glasgow (Table 1)59 ml (2 fl oz)242 mg242 mg as served, in the poolCrozier et al., 2012measuredIncluded
Paperino's, Glasgow (Table 1)50 ml (1.7 fl oz)205 mg205 mg as served, in the poolCrozier et al., 2012measuredIncluded
S'mug, Glasgow (Table 1)32 ml (1.1 fl oz)173 mg173 mg as served, in the poolCrozier et al., 2012measuredIncluded
Costa Coffee, Glasgow (Table 1)25 ml (0.8 fl oz)157 mg157 mg as served, in the poolCrozier et al., 2012measuredIncluded
Heart Buchanan, Glasgow (Table 1)24 ml (0.8 fl oz)156 mg156 mg as served, in the poolCrozier et al., 2012measuredIncluded
Jellyhill, Glasgow (Table 1)63 ml (2.1 fl oz)151 mg151 mg as served, in the poolCrozier et al., 2012measuredIncluded
Baguette Express, Glasgow (Table 1)45 ml (1.5 fl oz)140 mg140 mg as served, in the poolCrozier et al., 2012measuredIncluded
Chapter1, Glasgow (Table 1)26 ml (0.9 fl oz)140 mg140 mg as served, in the poolCrozier et al., 2012measuredIncluded
Peckham's, Glasgow (Table 1)70 ml (2.4 fl oz)140 mg140 mg as served, in the poolCrozier et al., 2012measuredIncluded
Little Italy, Glasgow (Table 1)23 ml (0.8 fl oz)129 mg129 mg as served, in the poolCrozier et al., 2012measuredIncluded
Coffee @ 291, Glasgow (Table 1)49 ml (1.7 fl oz)98 mg98 mg as served, in the poolCrozier et al., 2012measuredIncluded
Crepe a Croissant, Glasgow (Table 1)34 ml (1.1 fl oz)95 mg95 mg as served, in the poolCrozier et al., 2012measuredIncluded
Kember & Jones, Glasgow (Table 1)43 ml (1.5 fl oz)90 mg90 mg as served, in the poolCrozier et al., 2012measuredIncluded
Beanscene, Glasgow (Table 1)48 ml (1.6 fl oz)77 mg77 mg as served, in the poolCrozier et al., 2012measuredIncluded
Tinderbox, Glasgow (Table 1)25 ml (0.8 fl oz)75 mg75 mg as served, in the poolCrozier et al., 2012measuredIncluded
Morton's, Glasgow (Table 1)35 ml (1.2 fl oz)73 mg73 mg as served, in the poolCrozier et al., 2012measuredIncluded
Antipasti, Glasgow (Table 1)36 ml (1.2 fl oz)72 mg72 mg as served, in the poolCrozier et al., 2012measuredIncluded
Starbucks, Glasgow (Table 1)27 ml (0.9 fl oz)51 mg51 mg as served, in the poolCrozier et al., 2012measuredIncluded
University Cafe (blend, 18 g), Scotland (Table 3), purchase 149 ml (1.7 fl oz)276 mg276 mg as served, in the poolLudwig et al., 2014measuredIncluded
University Cafe (blend, 18 g), Scotland (Table 3), purchase 253 ml (1.8 fl oz)191 mg191 mg as served, in the poolLudwig et al., 2014measuredIncluded
University Cafe (blend, 18 g), Scotland (Table 3), purchase 345 ml (1.5 fl oz)180 mg180 mg as served, in the poolLudwig et al., 2014measuredIncluded
University Cafe (blend, 18 g), Scotland (Table 3), purchase 464 ml (2.2 fl oz)201 mg201 mg as served, in the poolLudwig et al., 2014measuredIncluded
Little Italy (blend, 9 g), Scotland (Table 3), purchase 121 ml (0.7 fl oz)130 mg130 mg as served, in the poolLudwig et al., 2014measuredIncluded
Little Italy (blend, 9 g), Scotland (Table 3), purchase 217 ml (0.6 fl oz)112 mg112 mg as served, in the poolLudwig et al., 2014measuredIncluded
Little Italy (blend, 9 g), Scotland (Table 3), purchase 316 ml (0.5 fl oz)101 mg101 mg as served, in the poolLudwig et al., 2014measuredIncluded
Little Italy (blend, 9 g), Scotland (Table 3), purchase 422 ml (0.7 fl oz)140 mg140 mg as served, in the poolLudwig et al., 2014measuredIncluded
Patisserie Francoise (blend, 9 g), Scotland (Table 3), purchase 138 ml (1.3 fl oz)111 mg111 mg as served, in the poolLudwig et al., 2014measuredIncluded
Patisserie Francoise (blend, 9 g), Scotland (Table 3), purchase 247 ml (1.6 fl oz)124 mg124 mg as served, in the poolLudwig et al., 2014measuredIncluded
Patisserie Francoise (blend, 9 g), Scotland (Table 3), purchase 390 ml (3 fl oz)126 mg126 mg as served, in the poolLudwig et al., 2014measuredIncluded
Patisserie Francoise (blend, 9 g), Scotland (Table 3), purchase 425 ml (0.8 fl oz)110 mg110 mg as served, in the poolLudwig et al., 2014measuredIncluded
Artisan Roast (arabica, 18 g), Scotland (Table 3), purchase 117 ml (0.6 fl oz)99 mg99 mg as served, in the poolLudwig et al., 2014measuredIncluded
Artisan Roast (arabica, 18 g), Scotland (Table 3), purchase 216 ml (0.5 fl oz)104 mg104 mg as served, in the poolLudwig et al., 2014measuredIncluded
Artisan Roast (arabica, 18 g), Scotland (Table 3), purchase 315 ml (0.5 fl oz)101 mg101 mg as served, in the poolLudwig et al., 2014measuredIncluded
Artisan Roast (arabica, 18 g), Scotland (Table 3), purchase 413 ml (0.4 fl oz)116 mg116 mg as served, in the poolLudwig et al., 2014measuredIncluded
Costa Coffee (arabica, 9 g), Scotland (Table 3), purchase 136 ml (1.2 fl oz)101 mg101 mg as served, in the poolLudwig et al., 2014measuredIncluded
Costa Coffee (arabica, 9 g), Scotland (Table 3), purchase 234 ml (1.1 fl oz)86 mg86 mg as served, in the poolLudwig et al., 2014measuredIncluded
Costa Coffee (arabica, 9 g), Scotland (Table 3), purchase 330 ml (1 fl oz)89 mg89 mg as served, in the poolLudwig et al., 2014measuredIncluded
Costa Coffee (arabica, 9 g), Scotland (Table 3), purchase 434 ml (1.1 fl oz)94 mg94 mg as served, in the poolLudwig et al., 2014measuredIncluded
The Tinder Box (arabica, 9 g), Scotland (Table 3), purchase 123 ml (0.8 fl oz)77 mg77 mg as served, in the poolLudwig et al., 2014measuredIncluded
The Tinder Box (arabica, 9 g), Scotland (Table 3), purchase 227 ml (0.9 fl oz)83 mg83 mg as served, in the poolLudwig et al., 2014measuredIncluded
The Tinder Box (arabica, 9 g), Scotland (Table 3), purchase 325 ml (0.8 fl oz)90 mg90 mg as served, in the poolLudwig et al., 2014measuredIncluded
The Tinder Box (arabica, 9 g), Scotland (Table 3), purchase 425 ml (0.8 fl oz)86 mg86 mg as served, in the poolLudwig et al., 2014measuredIncluded
Caffe Nero (blend, 9 g), Scotland (Table 3), purchase 132 ml (1.1 fl oz)72 mg72 mg as served, in the poolLudwig et al., 2014measuredIncluded
Caffe Nero (blend, 9 g), Scotland (Table 3), purchase 233 ml (1.1 fl oz)87 mg87 mg as served, in the poolLudwig et al., 2014measuredIncluded
Caffe Nero (blend, 9 g), Scotland (Table 3), purchase 334 ml (1.1 fl oz)82 mg82 mg as served, in the poolLudwig et al., 2014measuredIncluded
Caffe Nero (blend, 9 g), Scotland (Table 3), purchase 431 ml (1 fl oz)89 mg89 mg as served, in the poolLudwig et al., 2014measuredIncluded
Starbucks (arabica, 9 g), Scotland (Table 3), purchase 133 ml (1.1 fl oz)79 mg79 mg as served, in the poolLudwig et al., 2014measuredIncluded
Starbucks (arabica, 9 g), Scotland (Table 3), purchase 231 ml (1 fl oz)76 mg76 mg as served, in the poolLudwig et al., 2014measuredIncluded
Starbucks (arabica, 9 g), Scotland (Table 3), purchase 327 ml (0.9 fl oz)66 mg66 mg as served, in the poolLudwig et al., 2014measuredIncluded
Starbucks (arabica, 9 g), Scotland (Table 3), purchase 427 ml (0.9 fl oz)67 mg67 mg as served, in the poolLudwig et al., 2014measuredIncluded
Caffetteria Pellico (blend, 7.5 g), Parma, Italy (Table 4), purchase 120 ml (0.7 fl oz)121 mg121 mg as served, in the poolLudwig et al., 2014measuredIncluded
Caffetteria Pellico (blend, 7.5 g), Parma, Italy (Table 4), purchase 221 ml (0.7 fl oz)129 mg129 mg as served, in the poolLudwig et al., 2014measuredIncluded
Caffetteria Pellico (blend, 7.5 g), Parma, Italy (Table 4), purchase 322 ml (0.7 fl oz)140 mg140 mg as served, in the poolLudwig et al., 2014measuredIncluded
Caffetteria Pellico (blend, 7.5 g), Parma, Italy (Table 4), purchase 422 ml (0.7 fl oz)150 mg150 mg as served, in the poolLudwig et al., 2014measuredIncluded
Camst (blend, 8 g), Parma, Italy (Table 4), purchase 128 ml (0.9 fl oz)132 mg132 mg as served, in the poolLudwig et al., 2014measuredIncluded
Camst (blend, 8 g), Parma, Italy (Table 4), purchase 223 ml (0.8 fl oz)114 mg114 mg as served, in the poolLudwig et al., 2014measuredIncluded
Camst (blend, 8 g), Parma, Italy (Table 4), purchase 324 ml (0.8 fl oz)121 mg121 mg as served, in the poolLudwig et al., 2014measuredIncluded
Camst (blend, 8 g), Parma, Italy (Table 4), purchase 429 ml (1 fl oz)108 mg108 mg as served, in the poolLudwig et al., 2014measuredIncluded
Castagnoli (blend, dose unknown), Parma, Italy (Table 4), purchase 124 ml (0.8 fl oz)108 mg108 mg as served, in the poolLudwig et al., 2014measuredIncluded
Castagnoli (blend, dose unknown), Parma, Italy (Table 4), purchase 219 ml (0.6 fl oz)118 mg118 mg as served, in the poolLudwig et al., 2014measuredIncluded
Castagnoli (blend, dose unknown), Parma, Italy (Table 4), purchase 319 ml (0.6 fl oz)105 mg105 mg as served, in the poolLudwig et al., 2014measuredIncluded
Castagnoli (blend, dose unknown), Parma, Italy (Table 4), purchase 420 ml (0.7 fl oz)126 mg126 mg as served, in the poolLudwig et al., 2014measuredIncluded
Marcheselli (blend, 7 g), Parma, Italy (Table 4), purchase 119 ml (0.6 fl oz)100 mg100 mg as served, in the poolLudwig et al., 2014measuredIncluded
Marcheselli (blend, 7 g), Parma, Italy (Table 4), purchase 218 ml (0.6 fl oz)102 mg102 mg as served, in the poolLudwig et al., 2014measuredIncluded
Marcheselli (blend, 7 g), Parma, Italy (Table 4), purchase 319 ml (0.6 fl oz)115 mg115 mg as served, in the poolLudwig et al., 2014measuredIncluded
Marcheselli (blend, 7 g), Parma, Italy (Table 4), purchase 418 ml (0.6 fl oz)111 mg111 mg as served, in the poolLudwig et al., 2014measuredIncluded
Kikko (blend, 7 g), Parma, Italy (Table 4), purchase 127 ml (0.9 fl oz)106 mg106 mg as served, in the poolLudwig et al., 2014measuredIncluded
Kikko (blend, 7 g), Parma, Italy (Table 4), purchase 227 ml (0.9 fl oz)98 mg98 mg as served, in the poolLudwig et al., 2014measuredIncluded
Kikko (blend, 7 g), Parma, Italy (Table 4), purchase 323 ml (0.8 fl oz)94 mg94 mg as served, in the poolLudwig et al., 2014measuredIncluded
Kikko (blend, 7 g), Parma, Italy (Table 4), purchase 431 ml (1 fl oz)105 mg105 mg as served, in the poolLudwig et al., 2014measuredIncluded
Regina (arabica, 8 g), Parma, Italy (Table 4), purchase 114 ml (0.5 fl oz)95 mg95 mg as served, in the poolLudwig et al., 2014measuredIncluded
Regina (arabica, 8 g), Parma, Italy (Table 4), purchase 218 ml (0.6 fl oz)101 mg101 mg as served, in the poolLudwig et al., 2014measuredIncluded
Regina (arabica, 8 g), Parma, Italy (Table 4), purchase 315 ml (0.5 fl oz)108 mg108 mg as served, in the poolLudwig et al., 2014measuredIncluded
Regina (arabica, 8 g), Parma, Italy (Table 4), purchase 413 ml (0.4 fl oz)96 mg96 mg as served, in the poolLudwig et al., 2014measuredIncluded
San Marco (blend, 8 g), Parma, Italy (Table 4), purchase 116 ml (0.5 fl oz)100 mg100 mg as served, in the poolLudwig et al., 2014measuredIncluded
San Marco (blend, 8 g), Parma, Italy (Table 4), purchase 218 ml (0.6 fl oz)85 mg85 mg as served, in the poolLudwig et al., 2014measuredIncluded
San Marco (blend, 8 g), Parma, Italy (Table 4), purchase 321 ml (0.7 fl oz)113 mg113 mg as served, in the poolLudwig et al., 2014measuredIncluded
San Marco (blend, 8 g), Parma, Italy (Table 4), purchase 416 ml (0.5 fl oz)102 mg102 mg as served, in the poolLudwig et al., 2014measuredIncluded
Lo Sfizio (blend, 7 g), Parma, Italy (Table 4), purchase 121 ml (0.7 fl oz)99 mg99 mg as served, in the poolLudwig et al., 2014measuredIncluded
Lo Sfizio (blend, 7 g), Parma, Italy (Table 4), purchase 216 ml (0.5 fl oz)101 mg101 mg as served, in the poolLudwig et al., 2014measuredIncluded
Lo Sfizio (blend, 7 g), Parma, Italy (Table 4), purchase 315 ml (0.5 fl oz)85 mg85 mg as served, in the poolLudwig et al., 2014measuredIncluded
Lo Sfizio (blend, 7 g), Parma, Italy (Table 4), purchase 424 ml (0.8 fl oz)104 mg104 mg as served, in the poolLudwig et al., 2014measuredIncluded
Bar Topino (blend, 5 g), Parma, Italy (Table 4), purchase 117 ml (0.6 fl oz)93 mg93 mg as served, in the poolLudwig et al., 2014measuredIncluded
Bar Topino (blend, 5 g), Parma, Italy (Table 4), purchase 216 ml (0.5 fl oz)89 mg89 mg as served, in the poolLudwig et al., 2014measuredIncluded
Bar Topino (blend, 5 g), Parma, Italy (Table 4), purchase 313 ml (0.4 fl oz)82 mg82 mg as served, in the poolLudwig et al., 2014measuredIncluded
Bar Topino (blend, 5 g), Parma, Italy (Table 4), purchase 419 ml (0.6 fl oz)109 mg109 mg as served, in the poolLudwig et al., 2014measuredIncluded
Alfa Cafe (arabica, 8 g), Parma, Italy (Table 4), purchase 123 ml (0.8 fl oz)75 mg75 mg as served, in the poolLudwig et al., 2014measuredIncluded
Alfa Cafe (arabica, 8 g), Parma, Italy (Table 4), purchase 216 ml (0.5 fl oz)54 mg54 mg as served, in the poolLudwig et al., 2014measuredIncluded
Alfa Cafe (arabica, 8 g), Parma, Italy (Table 4), purchase 323 ml (0.8 fl oz)84 mg84 mg as served, in the poolLudwig et al., 2014measuredIncluded
Alfa Cafe (arabica, 8 g), Parma, Italy (Table 4), purchase 420 ml (0.7 fl oz)80 mg80 mg as served, in the poolLudwig et al., 2014measuredIncluded
Tahona (arabica, 9 g), Pamplona, Spain (Table 5), purchase 159 ml (2 fl oz)117 mg117 mg as served, in the poolLudwig et al., 2014measuredIncluded
Tahona (arabica, 9 g), Pamplona, Spain (Table 5), purchase 268 ml (2.3 fl oz)134 mg134 mg as served, in the poolLudwig et al., 2014measuredIncluded
Tahona (arabica, 9 g), Pamplona, Spain (Table 5), purchase 382 ml (2.8 fl oz)139 mg139 mg as served, in the poolLudwig et al., 2014measuredIncluded
Tahona (arabica, 9 g), Pamplona, Spain (Table 5), purchase 438 ml (1.3 fl oz)117 mg117 mg as served, in the poolLudwig et al., 2014measuredIncluded
Taberna (arabica, 9 g), Pamplona, Spain (Table 5), purchase 167 ml (2.3 fl oz)123 mg123 mg as served, in the poolLudwig et al., 2014measuredIncluded
Taberna (arabica, 9 g), Pamplona, Spain (Table 5), purchase 264 ml (2.2 fl oz)119 mg119 mg as served, in the poolLudwig et al., 2014measuredIncluded
Taberna (arabica, 9 g), Pamplona, Spain (Table 5), purchase 363 ml (2.1 fl oz)128 mg128 mg as served, in the poolLudwig et al., 2014measuredIncluded
Taberna (arabica, 9 g), Pamplona, Spain (Table 5), purchase 464 ml (2.2 fl oz)119 mg119 mg as served, in the poolLudwig et al., 2014measuredIncluded
Faustino (blend, 9 g), Pamplona, Spain (Table 5), purchase 170 ml (2.4 fl oz)112 mg112 mg as served, in the poolLudwig et al., 2014measuredIncluded
Faustino (blend, 9 g), Pamplona, Spain (Table 5), purchase 267 ml (2.3 fl oz)118 mg118 mg as served, in the poolLudwig et al., 2014measuredIncluded
Faustino (blend, 9 g), Pamplona, Spain (Table 5), purchase 367 ml (2.3 fl oz)116 mg116 mg as served, in the poolLudwig et al., 2014measuredIncluded
Faustino (blend, 9 g), Pamplona, Spain (Table 5), purchase 465 ml (2.2 fl oz)129 mg129 mg as served, in the poolLudwig et al., 2014measuredIncluded
Cafe de Iruna (arabica, 9 g), Pamplona, Spain (Table 5), purchase 171 ml (2.4 fl oz)125 mg125 mg as served, in the poolLudwig et al., 2014measuredIncluded
Cafe de Iruna (arabica, 9 g), Pamplona, Spain (Table 5), purchase 2104 ml (3.5 fl oz)128 mg128 mg as served, in the poolLudwig et al., 2014measuredIncluded
Cafe de Iruna (arabica, 9 g), Pamplona, Spain (Table 5), purchase 363 ml (2.1 fl oz)82 mg82 mg as served, in the poolLudwig et al., 2014measuredIncluded
Cafe de Iruna (arabica, 9 g), Pamplona, Spain (Table 5), purchase 492 ml (3.1 fl oz)132 mg132 mg as served, in the poolLudwig et al., 2014measuredIncluded
Cafe y Te (arabica, 9 g), Pamplona, Spain (Table 5), purchase 140 ml (1.4 fl oz)91 mg91 mg as served, in the poolLudwig et al., 2014measuredIncluded
Cafe y Te (arabica, 9 g), Pamplona, Spain (Table 5), purchase 250 ml (1.7 fl oz)107 mg107 mg as served, in the poolLudwig et al., 2014measuredIncluded
Cafe y Te (arabica, 9 g), Pamplona, Spain (Table 5), purchase 368 ml (2.3 fl oz)127 mg127 mg as served, in the poolLudwig et al., 2014measuredIncluded
Cafe y Te (arabica, 9 g), Pamplona, Spain (Table 5), purchase 442 ml (1.4 fl oz)111 mg111 mg as served, in the poolLudwig et al., 2014measuredIncluded
Manterola (arabica, 9 g), Pamplona, Spain (Table 5), purchase 190 ml (3 fl oz)112 mg112 mg as served, in the poolLudwig et al., 2014measuredIncluded
Manterola (arabica, 9 g), Pamplona, Spain (Table 5), purchase 243 ml (1.5 fl oz)92 mg92 mg as served, in the poolLudwig et al., 2014measuredIncluded
Manterola (arabica, 9 g), Pamplona, Spain (Table 5), purchase 3103 ml (3.5 fl oz)121 mg121 mg as served, in the poolLudwig et al., 2014measuredIncluded
Manterola (arabica, 9 g), Pamplona, Spain (Table 5), purchase 455 ml (1.9 fl oz)111 mg111 mg as served, in the poolLudwig et al., 2014measuredIncluded
Rumbos (blend, 9 g), Pamplona, Spain (Table 5), purchase 170 ml (2.4 fl oz)116 mg116 mg as served, in the poolLudwig et al., 2014measuredIncluded
Rumbos (blend, 9 g), Pamplona, Spain (Table 5), purchase 234 ml (1.1 fl oz)101 mg101 mg as served, in the poolLudwig et al., 2014measuredIncluded
Rumbos (blend, 9 g), Pamplona, Spain (Table 5), purchase 384 ml (2.8 fl oz)128 mg128 mg as served, in the poolLudwig et al., 2014measuredIncluded
Rumbos (blend, 9 g), Pamplona, Spain (Table 5), purchase 462 ml (2.1 fl oz)113 mg113 mg as served, in the poolLudwig et al., 2014measuredIncluded
Cafe de Pio (arabica, 9 g), Pamplona, Spain (Table 5), purchase 153 ml (1.8 fl oz)101 mg101 mg as served, in the poolLudwig et al., 2014measuredIncluded
Cafe de Pio (arabica, 9 g), Pamplona, Spain (Table 5), purchase 272 ml (2.4 fl oz)96 mg96 mg as served, in the poolLudwig et al., 2014measuredIncluded
Cafe de Pio (arabica, 9 g), Pamplona, Spain (Table 5), purchase 356 ml (1.9 fl oz)99 mg99 mg as served, in the poolLudwig et al., 2014measuredIncluded
Cafe de Pio (arabica, 9 g), Pamplona, Spain (Table 5), purchase 472 ml (2.4 fl oz)92 mg92 mg as served, in the poolLudwig et al., 2014measuredIncluded
Costa Coffee espresso, outlet mean; volume is the study mean espresso serving (34.1 mL, range 16 to 60)34 ml (1.2 fl oz)59.5 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
Starbucks espresso, outlet mean; volume is the study mean espresso serving (34.1 mL, range 16 to 60)34 ml (1.2 fl oz)55.2 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
Tchibo espresso, outlet mean; volume is the study mean espresso serving (34.1 mL, range 16 to 60)34 ml (1.2 fl oz)58.3 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
Green Caffe Nero espresso, outlet mean; volume is the study mean espresso serving (34.1 mL, range 16 to 60)34 ml (1.2 fl oz)53.4 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
Galeria Wypiekow Lubaszka espresso, outlet mean; volume is the study mean espresso serving (34.1 mL, range 16 to 60)34 ml (1.2 fl oz)54.3 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
Przystanek Piekarnia espresso, outlet mean; volume is the study mean espresso serving (34.1 mL, range 16 to 60)34 ml (1.2 fl oz)142.8 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
Putka espresso, outlet mean; volume is the study mean espresso serving (34.1 mL, range 16 to 60)34 ml (1.2 fl oz)74.1 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
Zabka espresso, outlet mean; volume is the study mean espresso serving (34.1 mL, range 16 to 60)34 ml (1.2 fl oz)111.2 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
McCafe (McDonald's) espresso, outlet mean; volume is the study mean espresso serving (34.1 mL, range 16 to 60)34 ml (1.2 fl oz)48 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
Hotel restaurant espresso, outlet mean; volume is the study mean espresso serving (34.1 mL, range 16 to 60)34 ml (1.2 fl oz)117.3 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
BP Wild Bean Cafe espresso, outlet mean; volume is the study mean espresso serving (34.1 mL, range 16 to 60)34 ml (1.2 fl oz)85.8 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
Orlen espresso, outlet mean; volume is the study mean espresso serving (34.1 mL, range 16 to 60)34 ml (1.2 fl oz)80.6 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
Shell espresso, outlet mean; volume is the study mean espresso serving (34.1 mL, range 16 to 60)34 ml (1.2 fl oz)65.4 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
FSA COA37CA, Ground coffee - Espresso; 156 g served, 122 mg per serving; mg per L as analysed156 g served (weighed; volume not recorded)785 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Served volume not recorded (weight only) and shot count not recorded
FSA LON38CA, Ground coffee - Espresso; 72 g served, 227 mg per serving; mg per L as analysed72 g served (weighed; volume not recorded)3152 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Served volume not recorded (weight only) and shot count not recorded
FSA NOR19WO, Coffee - Espresso (vending); 134 g served, 49 mg per serving; mg per L as analysed134 g served (weighed; volume not recorded)365 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA PRE36CA, Ground coffee - Espresso; 46 g served, 205 mg per serving; mg per L as analysed46 g served (weighed; volume not recorded)4449 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Served volume not recorded (weight only) and shot count not recorded
FSA SUF10CA, Ground coffee - Espresso; 71 g served, 92 mg per serving; mg per L as analysed71 g served (weighed; volume not recorded)2597 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Served volume not recorded (weight only) and shot count not recorded
LA Cima, Jeddah, espresso; ppm read as mg per L (Table 2)None recorded; a concentration7701.54 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Serving volume not reported; also reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Brew 92, Jeddah, espresso; ppm read as mg per L (Table 2)None recorded; a concentration5801.12 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Serving volume not reported; also reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Cloud 9, Jeddah, espresso; ppm read as mg per L (Table 2)None recorded; a concentration4852.15 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Serving volume not reported; also reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Starbucks, Jeddah, espresso; ppm read as mg per L (Table 2)None recorded; a concentration2488.87 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Serving volume not reported; also reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Ratio, Jeddah, espresso; ppm read as mg per L (Table 2)None recorded; a concentration8080.05 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Serving volume not reported; also reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Costa, Jeddah, espresso; ppm read as mg per L (Table 2)None recorded; a concentration1366.29 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Serving volume not reported; also reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Kims, Jeddah, espresso; ppm read as mg per L (Table 2)None recorded; a concentration5647.89 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Serving volume not reported; also reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Dose, Jeddah, espresso; ppm read as mg per L (Table 2)None recorded; a concentration839.69 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Serving volume not reported; also reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
USDA reference30 ml (1 fl oz)63.6 mg63.6 mg as served, declared, not pooledUSDA FoodData CentraldeclaredIncluded

Espresso, double shot: 6 rows, 3 used

SampleServing as recordedCaffeine as recordedUsed asSourceTypeStatus
Lab espresso, light roast, 18.6 g, regular extraction (Table 2)23 ml (0.8 fl oz)165 mg165 mg as served, in the poolLudwig et al., 2014measuredIncluded
Lab espresso, medium roast, 18.1 g, regular extraction (Table 2)23 ml (0.8 fl oz)152 mg152 mg as served, in the poolLudwig et al., 2014measuredIncluded
Lab espresso, dark roast, 20.4 g, regular extraction (Table 2)22 ml (0.7 fl oz)174 mg174 mg as served, in the poolLudwig et al., 2014measuredIncluded
Lab espresso, light roast, 18.6 g, over-extraction (Table 2)55 ml (1.9 fl oz)203 mgNot usedLudwig et al., 2014measuredExcluded: Deliberate over-extraction trial, not a normal serving
Lab espresso, medium roast, 18.1 g, over-extraction (Table 2)45 ml (1.5 fl oz)202 mgNot usedLudwig et al., 2014measuredExcluded: Deliberate over-extraction trial, not a normal serving
Lab espresso, dark roast, 20.4 g, over-extraction (Table 2)43 ml (1.5 fl oz)232 mgNot usedLudwig et al., 2014measuredExcluded: Deliberate over-extraction trial, not a normal serving

Brewed (drip) coffee: 112 rows, 15 used

SampleServing as recordedCaffeine as recordedUsed asSourceTypeStatus
Washed arabica, H-S roast; mg per mL (Table 3)None recorded; a concentration0.39 mg per mlNot usedCrozier et al., 2012measuredExcluded: Lab roasting experiment: 5 g steeped 5 min in 100 mL and filtered, not a served drink
Washed arabica, L-L roast; mg per mL (Table 3)None recorded; a concentration0.37 mg per mlNot usedCrozier et al., 2012measuredExcluded: Lab roasting experiment: 5 g steeped 5 min in 100 mL and filtered, not a served drink
Unwashed arabica, H-S roast; mg per mL (Table 3)None recorded; a concentration0.37 mg per mlNot usedCrozier et al., 2012measuredExcluded: Lab roasting experiment: 5 g steeped 5 min in 100 mL and filtered, not a served drink
Unwashed arabica, L-L roast; mg per mL (Table 3)None recorded; a concentration0.35 mg per mlNot usedCrozier et al., 2012measuredExcluded: Lab roasting experiment: 5 g steeped 5 min in 100 mL and filtered, not a served drink
Costa Coffee Americano, outlet mean; volume is the study mean Americano serving (225.4 mL, range 152 to 420)225 ml (7.6 fl oz)72.4 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Americano (espresso diluted with water), not drip coffee; outlet mean only; the volume shown is the study's mean serving for this drink type, not this outlet's
Starbucks Americano, outlet mean; volume is the study mean Americano serving (225.4 mL, range 152 to 420)225 ml (7.6 fl oz)171.7 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Americano (espresso diluted with water), not drip coffee; outlet mean only; the volume shown is the study's mean serving for this drink type, not this outlet's
Tchibo Americano, outlet mean; volume is the study mean Americano serving (225.4 mL, range 152 to 420)225 ml (7.6 fl oz)142.2 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Americano (espresso diluted with water), not drip coffee; outlet mean only; the volume shown is the study's mean serving for this drink type, not this outlet's
Green Caffe Nero Americano, outlet mean; volume is the study mean Americano serving (225.4 mL, range 152 to 420)225 ml (7.6 fl oz)100.9 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Americano (espresso diluted with water), not drip coffee; outlet mean only; the volume shown is the study's mean serving for this drink type, not this outlet's
Galeria Wypiekow Lubaszka Americano, outlet mean; volume is the study mean Americano serving (225.4 mL, range 152 to 420)225 ml (7.6 fl oz)103.8 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Americano (espresso diluted with water), not drip coffee; outlet mean only; the volume shown is the study's mean serving for this drink type, not this outlet's
Przystanek Piekarnia Americano, outlet mean; volume is the study mean Americano serving (225.4 mL, range 152 to 420)225 ml (7.6 fl oz)254.2 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Americano (espresso diluted with water), not drip coffee; outlet mean only; the volume shown is the study's mean serving for this drink type, not this outlet's
Putka Americano, outlet mean; volume is the study mean Americano serving (225.4 mL, range 152 to 420)225 ml (7.6 fl oz)204.1 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Americano (espresso diluted with water), not drip coffee; outlet mean only; the volume shown is the study's mean serving for this drink type, not this outlet's
Zabka Americano, outlet mean; volume is the study mean Americano serving (225.4 mL, range 152 to 420)225 ml (7.6 fl oz)154.9 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Americano (espresso diluted with water), not drip coffee; outlet mean only; the volume shown is the study's mean serving for this drink type, not this outlet's
McCafe (McDonald's) Americano, outlet mean; volume is the study mean Americano serving (225.4 mL, range 152 to 420)225 ml (7.6 fl oz)169.3 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Americano (espresso diluted with water), not drip coffee; outlet mean only; the volume shown is the study's mean serving for this drink type, not this outlet's
Hotel restaurant Americano, outlet mean; volume is the study mean Americano serving (225.4 mL, range 152 to 420)225 ml (7.6 fl oz)143.1 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Americano (espresso diluted with water), not drip coffee; outlet mean only; the volume shown is the study's mean serving for this drink type, not this outlet's
BP Wild Bean Cafe Americano, outlet mean; volume is the study mean Americano serving (225.4 mL, range 152 to 420)225 ml (7.6 fl oz)103.1 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Americano (espresso diluted with water), not drip coffee; outlet mean only; the volume shown is the study's mean serving for this drink type, not this outlet's
Orlen Americano, outlet mean; volume is the study mean Americano serving (225.4 mL, range 152 to 420)225 ml (7.6 fl oz)143 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Americano (espresso diluted with water), not drip coffee; outlet mean only; the volume shown is the study's mean serving for this drink type, not this outlet's
Shell Americano, outlet mean; volume is the study mean Americano serving (225.4 mL, range 152 to 420)225 ml (7.6 fl oz)133.3 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Americano (espresso diluted with water), not drip coffee; outlet mean only; the volume shown is the study's mean serving for this drink type, not this outlet's
Homemade ground coffee, 2.5 g in 160 mL, mean of 65 lab infusions (text)160 ml (5.4 fl oz)23 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Aggregate mean; coffee steeped in the cup and decanted, not drip
Mean (SD 36) of brewed specialty coffees per 16 fl oz cup; n of coffees not given in the abstract473 ml (16 fl oz)188 mgNot usedMcCusker et al., 2003measuredExcluded: Aggregate mean from the abstract; full text not accessible so individual servings could not be transcribed
Medium roast, medium grind, hot brew 6 min French press; mg per L (Table 3)None recorded; a concentration1040 mg per litreNot usedFuller and Rao, 2017measuredExcluded: French press at 1:10 coffee to water (35 g in 350 mL), not drip and not a served drink
Medium roast, coarse grind, hot brew 6 min French press; mg per L (Table 3)None recorded; a concentration970 mg per litreNot usedFuller and Rao, 2017measuredExcluded: French press at 1:10 coffee to water (35 g in 350 mL), not drip and not a served drink
Dark roast, medium grind, hot brew 6 min French press; mg per L (Table 3)None recorded; a concentration1060 mg per litreNot usedFuller and Rao, 2017measuredExcluded: French press at 1:10 coffee to water (35 g in 350 mL), not drip and not a served drink
Dark roast, coarse grind, hot brew 6 min French press; mg per L (Table 3)None recorded; a concentration840 mg per litreNot usedFuller and Rao, 2017measuredExcluded: French press at 1:10 coffee to water (35 g in 350 mL), not drip and not a served drink
FSA COA07DO, Ground coffee; 207 g served, 47 mg per serving; mg per L as analysed207 g served (weighed; volume not recorded)228 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA COA15WD, Ground coffee; 265 g served, 189 mg per serving; mg per L as analysed265 g served (weighed; volume not recorded)715 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA COA19CA, Ground coffee; 209 g served, 109 mg per serving; mg per L as analysed209 g served (weighed; volume not recorded)520 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA COA20CA, Ground coffee; 316 g served, 81 mg per serving; mg per L as analysed316 g served (weighed; volume not recorded)511.5 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA COA36CA, Ground coffee - filter (vending); 156 g served, 55 mg per serving; mg per L as analysed156 g served (weighed; volume not recorded)353 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA COA39CA, Ground coffee; 169 g served, 59 mg per serving; mg per L as analysed169 g served (weighed; volume not recorded)348 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA LON15DO, Ground coffee; 257 g served, 127 mg per serving; mg per L as analysed257 g served (weighed; volume not recorded)493 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA LON22WO, Ground coffee - vending; 178 g served, 57 mg per serving; mg per L as analysed178 g served (weighed; volume not recorded)318 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA LON28WD, Ground coffee; 224 g served, 91 mg per serving; mg per L as analysed224 g served (weighed; volume not recorded)405 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA LON32CA, Ground coffee - filter; 224 g served, 87 mg per serving; mg per L as analysed; prepared to taste; milk not recorded224 g served (weighed; volume not recorded)390.5 mg per litre92.5 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA LON33CA, Ground coffee; 331 g served, 227 mg per serving; mg per L as analysed331 g served (weighed; volume not recorded)685 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA LON34CA, Ground coffee - filter; 182 g served, 64 mg per serving; mg per L as analysed182 g served (weighed; volume not recorded)352 mg per litre83.4 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA NOR31CA, Ground coffee; 257 g served, 104 mg per serving; mg per L as analysed257 g served (weighed; volume not recorded)404 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA NOR33CA, Ground coffee; 189 g served, 39 mg per serving; mg per L as analysed189 g served (weighed; volume not recorded)207 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA NOR34CA, Ground coffee; 194 g served, 51 mg per serving; mg per L as analysed194 g served (weighed; volume not recorded)264 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA NOR36CA, Ground coffee; 296 g served, 92 mg per serving; mg per L as analysed296 g served (weighed; volume not recorded)310 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA NOR40CA, Ground coffee; 152 g served, 116 mg per serving; mg per L as analysed152 g served (weighed; volume not recorded)762 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA PRE19CA, Ground coffee; 205 g served, 68 mg per serving; mg per L as analysed205 g served (weighed; volume not recorded)333 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA PRE23DO, Ground coffee; 300 g served, 159 mg per serving; mg per L as analysed300 g served (weighed; volume not recorded)531 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA PRE38CA, Ground coffee - filter; 170 g served, 58 mg per serving; mg per L as analysed170 g served (weighed; volume not recorded)343 mg per litre81.3 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA PRE39CA, Ground coffee - filter; 174 g served, 88 mg per serving; mg per L as analysed174 g served (weighed; volume not recorded)504 mg per litre119.4 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA SCO01DO, Ground coffee; 189 g served, 85 mg per serving; mg per L as analysed189 g served (weighed; volume not recorded)449 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SCO04DO, Ground coffee; 221 g served, 140 mg per serving; mg per L as analysed221 g served (weighed; volume not recorded)634 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SCO23WO, Coffee - vending; 275 g served, 92 mg per serving; mg per L as analysed275 g served (weighed; volume not recorded)333 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA SCO33CA, Ground coffee - filter; 204 g served, 87 mg per serving; mg per L as analysed; prepared to taste; milk not recorded204 g served (weighed; volume not recorded)427 mg per litre101.2 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA SCO37CA, Ground coffee; 314 g served, 171 mg per serving; mg per L as analysed314 g served (weighed; volume not recorded)545 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA SCO38CA, Ground coffee; 438 g served, 183 mg per serving; mg per L as analysed438 g served (weighed; volume not recorded)417 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA SCO39CA, Ground coffee; 170 g served, 134 mg per serving; mg per L as analysed170 g served (weighed; volume not recorded)786 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA SOM21WO, Coffee - vending; 155 g served, 36 mg per serving; mg per L as analysed155 g served (weighed; volume not recorded)231.5 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA SOM24WO, Ground coffee - filter; 184 g served, 62 mg per serving; mg per L as analysed184 g served (weighed; volume not recorded)335 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SOM28WD, Ground coffee; 213 g served, 125 mg per serving; mg per L as analysed213 g served (weighed; volume not recorded)586 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SOM31CA, Ground coffee - filter; 209 g served, 73 mg per serving; mg per L as analysed; prepared to taste; milk not recorded209 g served (weighed; volume not recorded)351 mg per litre83.2 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA SOM32CA, Ground coffee - filter; 235 g served, 53 mg per serving; mg per L as analysed235 g served (weighed; volume not recorded)226 mg per litre53.6 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA SOM39CA, Ground coffee - filter; 168 g served, 15 mg per serving; mg per L as analysed168 g served (weighed; volume not recorded)88 mg per litre20.9 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA SUF06WO, Ground coffee - filter (vending, tea trolley); 244 g served, 65 mg per serving; mg per L as analysed244 g served (weighed; volume not recorded)267 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA SUF13DO, Ground coffee; 240 g served, 76 mg per serving; mg per L as analysed240 g served (weighed; volume not recorded)318 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SUF18DO, Ground coffee; 302 g served, 86 mg per serving; mg per L as analysed302 g served (weighed; volume not recorded)284 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SUF19DO, Ground coffee; 187 g served, 65 mg per serving; mg per L as analysed187 g served (weighed; volume not recorded)345 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SUF20DO, Ground coffee; 261 g served, 110 mg per serving; mg per L as analysed261 g served (weighed; volume not recorded)421 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SUF21DO, Ground coffee; 211 g served, 79 mg per serving; mg per L as analysed211 g served (weighed; volume not recorded)373 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SUF33WD, Ground coffee; 291 g served, 129 mg per serving; mg per L as analysed291 g served (weighed; volume not recorded)442 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SUF34CA, Ground coffee; 184 g served, 115 mg per serving; mg per L as analysed184 g served (weighed; volume not recorded)627 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA SUF40CA, Ground coffee; 149 g served, 68 mg per serving; mg per L as analysed149 g served (weighed; volume not recorded)458 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA WAL05DO, Ground coffee; 276 g served, 84 mg per serving; mg per L as analysed276 g served (weighed; volume not recorded)303 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WAL10DO, Ground coffee; 233 g served, 94 mg per serving; mg per L as analysed233 g served (weighed; volume not recorded)404.5 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WAL13DO, Ground coffee; 213 g served, 139 mg per serving; mg per L as analysed213 g served (weighed; volume not recorded)654 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WAL18WO, Ground coffee; 227 g served, 137 mg per serving; mg per L as analysed227 g served (weighed; volume not recorded)602 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WAL20WO, Coffee - vending; 160 g served, 60 mg per serving; mg per L as analysed160 g served (weighed; volume not recorded)377 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA WAL21WO, Coffee - vending; 174 g served, 47 mg per serving; mg per L as analysed174 g served (weighed; volume not recorded)268 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA WAL24WO, Coffee - vending; 167 g served, 60 mg per serving; mg per L as analysed167 g served (weighed; volume not recorded)361 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA WAL30WD, Ground coffee; 328 g served, 218 mg per serving; mg per L as analysed328 g served (weighed; volume not recorded)664 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WAL32CA, Ground coffee - filter; 144 g served, 89 mg per serving; mg per L as analysed; prepared to taste; milk not recorded144 g served (weighed; volume not recorded)617 mg per litre146.2 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA WAL33CA, Ground coffee - filter; 172 g served, 95 mg per serving; mg per L as analysed172 g served (weighed; volume not recorded)554 mg per litre131.3 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA WAL35CA, Ground coffee - filter; 274 g served, 127 mg per serving; mg per L as analysed274 g served (weighed; volume not recorded)462.5 mg per litre109.6 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA WAL37CA, Ground coffee - filter; 186 g served, 163 mg per serving; mg per L as analysed186 g served (weighed; volume not recorded)878 mg per litre208.1 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA WAL40CA, Ground coffee - filter; 160 g served, 95 mg per serving; mg per L as analysed160 g served (weighed; volume not recorded)593 mg per litre140.5 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA WOR03DO, Ground coffee; 180 g served, 53 mg per serving; mg per L as analysed180 g served (weighed; volume not recorded)296 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WOR09DO, Ground coffee; 249 g served, 55 mg per serving; mg per L as analysed249 g served (weighed; volume not recorded)221 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WOR15DO, Ground coffee; 190 g served, 66 mg per serving; mg per L as analysed190 g served (weighed; volume not recorded)347 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WOR19WO, Ground coffee - vending; 180 g served, 24 mg per serving; mg per L as analysed180 g served (weighed; volume not recorded)133 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA WOR20WO, Ground coffee - vending; 156 g served, 105 mg per serving; mg per L as analysed156 g served (weighed; volume not recorded)675 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA WOR22WO, Coffee - vending; 156 g served, 28 mg per serving; mg per L as analysed156 g served (weighed; volume not recorded)181.5 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA WOR34CA, Ground coffee; 153 g served, 40 mg per serving; mg per L as analysed153 g served (weighed; volume not recorded)260 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA WOR35CA, Ground coffee; 127 g served, 65 mg per serving; mg per L as analysed127 g served (weighed; volume not recorded)513 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA WOR38CA, Ground coffee; 145 g served, 61 mg per serving; mg per L as analysed145 g served (weighed; volume not recorded)420 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA YOR06DO, Ground coffee; 277 g served, 93 mg per serving; mg per L as analysed277 g served (weighed; volume not recorded)336 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA YOR15DO, Ground coffee; 152 g served, 108 mg per serving; mg per L as analysed152 g served (weighed; volume not recorded)708 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA YOR20WO, Coffee - vending; 171 g served, 34 mg per serving; mg per L as analysed171 g served (weighed; volume not recorded)201 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA YOR32CA, Ground coffee; 241 g served, 86 mg per serving; mg per L as analysed241 g served (weighed; volume not recorded)355 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA YOR35CA, Ground coffee - filter; 158 g served, 70 mg per serving; mg per L as analysed; prepared to taste; milk not recorded158 g served (weighed; volume not recorded)440 mg per litre104.3 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA YOR36CA, Ground coffee; 240 g served, 125 mg per serving; mg per L as analysed240 g served (weighed; volume not recorded)519 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
FSA YOR37CA, Ground coffee; 334 g served, 176 mg per serving; mg per L as analysed334 g served (weighed; volume not recorded)526 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded (could be filter, cafetiere or espresso based)
LA Cima, Jeddah, "Black & V60"; ppm read as mg per L (Table 2)None recorded; a concentration937.61 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Analytical concern: reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
LA Cima, Jeddah, Americano; ppm read as mg per L (Table 2)None recorded; a concentration1030.26 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Americano, not drip coffee; also reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Brew 92, Jeddah, "Black & V60"; ppm read as mg per L (Table 2)None recorded; a concentration971.52 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Analytical concern: reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Brew 92, Jeddah, Americano; ppm read as mg per L (Table 2)None recorded; a concentration854.49 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Americano, not drip coffee; also reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Cloud 9, Jeddah, "Black & V60"; ppm read as mg per L (Table 2)None recorded; a concentration956.54 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Analytical concern: reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Cloud 9, Jeddah, Americano; ppm read as mg per L (Table 2)None recorded; a concentration1093.71 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Americano, not drip coffee; also reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Starbucks, Jeddah, "Black & V60"; ppm read as mg per L (Table 2)None recorded; a concentration513.82 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Analytical concern: reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Starbucks, Jeddah, Americano; ppm read as mg per L (Table 2)None recorded; a concentration819.67 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Americano, not drip coffee; also reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Ratio, Jeddah, "Black & V60"; ppm read as mg per L (Table 2)None recorded; a concentration1081.71 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Analytical concern: reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Ratio, Jeddah, Americano; ppm read as mg per L (Table 2)None recorded; a concentration1319.43 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Americano, not drip coffee; also reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Costa, Jeddah, "Black & V60"; ppm read as mg per L (Table 2)None recorded; a concentration725.16 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Analytical concern: reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Costa, Jeddah, Americano; ppm read as mg per L (Table 2)None recorded; a concentration485.56 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Americano, not drip coffee; also reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Kims, Jeddah, "Black & V60"; ppm read as mg per L (Table 2)None recorded; a concentration821.69 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Analytical concern: reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Kims, Jeddah, Americano; ppm read as mg per L (Table 2)None recorded; a concentration557.16 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Americano, not drip coffee; also reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Dose, Jeddah, "Black & V60"; ppm read as mg per L (Table 2)None recorded; a concentration723.23 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Analytical concern: reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
Dose, Jeddah, Americano; ppm read as mg per L (Table 2)None recorded; a concentration516.54 mg per litreNot usedAl-Baqami et al., 2023measuredExcluded: Americano, not drip coffee; also reported values are 11 to 180 times the top of the method's stated 5 to 45 ppm linear range, with no dilution reported for non-espresso samples (espressos only tenfold); units given as both ppm and ug per g
USDA reference237 ml (8 fl oz)94.8 mg94.8 mg per 237 ml (8 fl oz), declared, not pooledUSDA FoodData CentraldeclaredIncluded

Cold brew: 4 rows, 0 used

SampleServing as recordedCaffeine as recordedUsed asSourceTypeStatus
Medium roast, medium grind, cold brew after 1440 min; mg per L (Table 3)None recorded; a concentration1180 mg per litreNot usedFuller and Rao, 2017measuredExcluded: Lab extraction study at 1:10 coffee to water (35 g in 350 mL), a concentrate strength; not a served drink
Medium roast, coarse grind, cold brew after 1440 min; mg per L (Table 3)None recorded; a concentration1230 mg per litreNot usedFuller and Rao, 2017measuredExcluded: Lab extraction study at 1:10 coffee to water (35 g in 350 mL), a concentrate strength; not a served drink
Dark roast, medium grind, cold brew after 1440 min; mg per L (Table 3)None recorded; a concentration1080 mg per litreNot usedFuller and Rao, 2017measuredExcluded: Lab extraction study at 1:10 coffee to water (35 g in 350 mL), a concentrate strength; not a served drink
Dark roast, coarse grind, cold brew after 1440 min; mg per L (Table 3)None recorded; a concentration990 mg per litreNot usedFuller and Rao, 2017measuredExcluded: Lab extraction study at 1:10 coffee to water (35 g in 350 mL), a concentrate strength; not a served drink

Instant coffee: 111 rows, 16 used

SampleServing as recordedCaffeine as recordedUsed asSourceTypeStatus
Fortaleza Natural, 2 g in 125 mL boiling water (Table 7)125 ml (4.2 fl oz)88 mg166.8 mg per 237 ml (8 fl oz), in the poolLudwig et al., 2014measuredIncluded
Marcilla Creme, 2 g in 125 mL boiling water (Table 7)125 ml (4.2 fl oz)78 mg147.9 mg per 237 ml (8 fl oz), in the poolLudwig et al., 2014measuredIncluded
Nescafe Classic, 2 g in 125 mL boiling water (Table 7)125 ml (4.2 fl oz)70 mg132.7 mg per 237 ml (8 fl oz), in the poolLudwig et al., 2014measuredIncluded
Nescafe Green Blend, 2 g in 125 mL boiling water (Table 7)125 ml (4.2 fl oz)60 mg113.8 mg per 237 ml (8 fl oz), in the poolLudwig et al., 2014measuredIncluded
Nescafe Gold Blend, 2 g in 125 mL boiling water (Table 7)125 ml (4.2 fl oz)55 mg104.3 mg per 237 ml (8 fl oz), in the poolLudwig et al., 2014measuredIncluded
Nescafe Espresso, 2 g in 125 mL boiling water (Table 7)125 ml (4.2 fl oz)48 mg91 mg per 237 ml (8 fl oz), in the poolLudwig et al., 2014measuredIncluded
Nescafe Colombia, 2 g in 125 mL boiling water (Table 7)125 ml (4.2 fl oz)48 mg91 mg per 237 ml (8 fl oz), in the poolLudwig et al., 2014measuredIncluded
Nescafe Alta Rica, 2 g in 125 mL boiling water (Table 7)125 ml (4.2 fl oz)48 mg91 mg per 237 ml (8 fl oz), in the poolLudwig et al., 2014measuredIncluded
FSA COA05DO, Instant coffee; 199 g served, 31 mg per serving; mg per L as analysed199 g served (weighed; volume not recorded)157 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA COA06DO, Instant coffee; 206 g served, 34 mg per serving; mg per L as analysed206 g served (weighed; volume not recorded)167 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA COA08DO, Instant coffee; 204 g served, 43 mg per serving; mg per L as analysed204 g served (weighed; volume not recorded)209 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA COA12WO, Instant coffee; 239 g served, 43 mg per serving; mg per L as analysed239 g served (weighed; volume not recorded)182 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA COA13WO, Instant coffee; 261 g served, 50 mg per serving; mg per L as analysed261 g served (weighed; volume not recorded)193 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA COA18CA, Instant coffee - vending; 276 g served, 131 mg per serving; mg per L as analysed276 g served (weighed; volume not recorded)473 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA COA27DO, Instant coffee; 286 g served, 72 mg per serving; mg per L as analysed286 g served (weighed; volume not recorded)252.5 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA COA28WO, Instant coffee; 226 g served, 63 mg per serving; mg per L as analysed226 g served (weighed; volume not recorded)280 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA COA31WO, Instant coffee; 219 g served, 92 mg per serving; mg per L as analysed219 g served (weighed; volume not recorded)421 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA COA32WO, Instant coffee; 269 g served, 83 mg per serving; mg per L as analysed269 g served (weighed; volume not recorded)307 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA COA34WD, Instant coffee; 230 g served, 52 mg per serving; mg per L as analysed230 g served (weighed; volume not recorded)226 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA COA38CA, Instant coffee; 154 g served, 38 mg per serving; mg per L as analysed; prepared to taste; milk not recorded154 g served (weighed; volume not recorded)246 mg per litre58.3 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA COA40CA, Instant coffee - vending; 129 g served, 54 mg per serving; mg per L as analysed129 g served (weighed; volume not recorded)417 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA LON05DO, Instant coffee; 215 g served, 21 mg per serving; mg per L as analysed215 g served (weighed; volume not recorded)96 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA LON11DO, Instant coffee; 239 g served, 44 mg per serving; mg per L as analysed239 g served (weighed; volume not recorded)183 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA LON13DO, Instant coffee; 141 g served, 46 mg per serving; mg per L as analysed141 g served (weighed; volume not recorded)325 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA LON16WO, Instant coffee; 212 g served, 42 mg per serving; mg per L as analysed212 g served (weighed; volume not recorded)197 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA LON19WO, Instant coffee; 245 g served, 48 mg per serving; mg per L as analysed245 g served (weighed; volume not recorded)195 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA LON20WO, Instant coffee (decaff); 203 g served, 2 mg per serving; mg per L as analysed203 g served (weighed; volume not recorded)9 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Decaffeinated instant coffee
FSA LON23WO, Instant coffee; 274 g served, 63 mg per serving; mg per L as analysed274 g served (weighed; volume not recorded)230 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA LON26WD, Instant coffee; 219 g served, 43 mg per serving; mg per L as analysed219 g served (weighed; volume not recorded)195 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA LON27WD, Instant coffee (decaff); 209 g served, 2 mg per serving; mg per L as analysed209 g served (weighed; volume not recorded)10 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Decaffeinated instant coffee
FSA LON29WD, Instant coffee; 204 g served, 83 mg per serving; mg per L as analysed204 g served (weighed; volume not recorded)406 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA LON31CA, Instant coffee; 157 g served, 50 mg per serving; mg per L as analysed; prepared to taste; milk not recorded157 g served (weighed; volume not recorded)321 mg per litre76.1 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA LON37CA, Instant coffee; 274 g served, 98 mg per serving; mg per L as analysed; prepared to taste; milk not recorded274 g served (weighed; volume not recorded)357 mg per litre84.6 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA NOR01DO, Instant coffee; 253 g served, 40 mg per serving; mg per L as analysed253 g served (weighed; volume not recorded)157 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA NOR02DO, Instant coffee (decaff); 151 g served, 3 mg per serving; mg per L as analysed151 g served (weighed; volume not recorded)21 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Decaffeinated instant coffee
FSA NOR04DO, Instant coffee; 231 g served, 33 mg per serving; mg per L as analysed231 g served (weighed; volume not recorded)142 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA NOR08DO, Instant coffee; 296 g served, 90 mg per serving; mg per L as analysed296 g served (weighed; volume not recorded)304 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA NOR13DO, Instant coffee; 206 g served, 39 mg per serving; mg per L as analysed206 g served (weighed; volume not recorded)188 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA NOR15DO, Instant coffee; 226 g served, 65 mg per serving; mg per L as analysed226 g served (weighed; volume not recorded)289.5 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA NOR17WO, Instant coffee; 143 g served, 48 mg per serving; mg per L as analysed143 g served (weighed; volume not recorded)338 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA NOR18WO, Instant coffee; 191 g served, 71 mg per serving; mg per L as analysed191 g served (weighed; volume not recorded)370 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA NOR22WO, Instant coffee; 252 g served, 49 mg per serving; mg per L as analysed252 g served (weighed; volume not recorded)196 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA NOR25WO, Instant coffee; 194 g served, 67 mg per serving; mg per L as analysed194 g served (weighed; volume not recorded)345 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA NOR37CA, Instant coffee; 176 g served, 23 mg per serving; mg per L as analysed; prepared to taste; milk not recorded176 g served (weighed; volume not recorded)130 mg per litre30.8 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA PRE01DO, Instant coffee; 235 g served, 77 mg per serving; mg per L as analysed235 g served (weighed; volume not recorded)327 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA PRE02DO, Instant coffee; 239 g served, 60 mg per serving; mg per L as analysed239 g served (weighed; volume not recorded)251 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA PRE04DO, Instant coffee; 245 g served, 73 mg per serving; mg per L as analysed245 g served (weighed; volume not recorded)299 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA PRE05DO, Instant coffee; 208 g served, 46 mg per serving; mg per L as analysed208 g served (weighed; volume not recorded)223 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA PRE07DO, Instant coffee; 267 g served, 35 mg per serving; mg per L as analysed267 g served (weighed; volume not recorded)131 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA PRE11WO, Instant coffee; 241 g served, 46 mg per serving; mg per L as analysed241 g served (weighed; volume not recorded)192.5 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA PRE15WD, Instant coffee; 242 g served, 53 mg per serving; mg per L as analysed242 g served (weighed; volume not recorded)218 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA PRE21DO, Instant coffee; 203 g served, 30 mg per serving; mg per L as analysed203 g served (weighed; volume not recorded)148 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA PRE24DO, Instant coffee; 287 g served, 59 mg per serving; mg per L as analysed287 g served (weighed; volume not recorded)207 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA PRE30WO, Instant coffee; 279 g served, 67 mg per serving; mg per L as analysed279 g served (weighed; volume not recorded)239 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA PRE33WO, Instant coffee; 232 g served, 92 mg per serving; mg per L as analysed232 g served (weighed; volume not recorded)397 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA PRE37CA, Instant coffee; 255 g served, 71 mg per serving; mg per L as analysed; prepared to taste; milk not recorded255 g served (weighed; volume not recorded)279 mg per litre66.1 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA SCO02DO, Instant coffee; 260 g served, 56 mg per serving; mg per L as analysed260 g served (weighed; volume not recorded)217 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SCO07DO, Instant coffee; 218 g served, 76 mg per serving; mg per L as analysed218 g served (weighed; volume not recorded)349 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SCO08DO, Instant coffee; 219 g served, 72 mg per serving; mg per L as analysed219 g served (weighed; volume not recorded)327 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SCO10DO, Instant coffee; 254 g served, 46 mg per serving; mg per L as analysed254 g served (weighed; volume not recorded)183 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SCO14DO, Instant coffee; 240 g served, 27 mg per serving; mg per L as analysed240 g served (weighed; volume not recorded)112 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SCO15DO, Instant coffee; 230 g served, 53 mg per serving; mg per L as analysed230 g served (weighed; volume not recorded)232.5 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SCO16WO, Instant coffee - vending; 153 g served, 49 mg per serving; mg per L as analysed153 g served (weighed; volume not recorded)319 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA SCO18WO, Instant coffee; 191 g served, 105 mg per serving; mg per L as analysed191 g served (weighed; volume not recorded)552 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SCO21WO, Instant coffee; 167 g served, 51 mg per serving; mg per L as analysed167 g served (weighed; volume not recorded)304 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SCO25WO, Instant coffee; 235 g served, 54 mg per serving; mg per L as analysed235 g served (weighed; volume not recorded)229 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SCO30WD, Instant coffee; 252 g served, 47 mg per serving; mg per L as analysed252 g served (weighed; volume not recorded)185 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SOM02DO, Instant coffee; 256 g served, 25 mg per serving; mg per L as analysed256 g served (weighed; volume not recorded)98 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SOM04DO, Instant coffee (decaff); 201 g served, 1 mg per serving; mg per L as analysed201 g served (weighed; volume not recorded)7 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Decaffeinated instant coffee
FSA SOM05DO, Instant coffee; 237 g served, 51 mg per serving; mg per L as analysed237 g served (weighed; volume not recorded)217 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SOM07DO, Instant coffee; 194 g served, 36 mg per serving; mg per L as analysed194 g served (weighed; volume not recorded)185 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SOM08DO, Instant coffee; 223 g served, 43 mg per serving; mg per L as analysed223 g served (weighed; volume not recorded)194 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SOM10DO, Instant coffee (decaff); 152 g served, 2 mg per serving; mg per L as analysed152 g served (weighed; volume not recorded)13 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Decaffeinated instant coffee
FSA SOM13DO, Instant coffee; 223 g served, 56 mg per serving; mg per L as analysed223 g served (weighed; volume not recorded)251 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SOM17WO, Instant coffee; 193 g served, 120 mg per serving; mg per L as analysed193 g served (weighed; volume not recorded)623 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SOM22WO, Instant coffee; 256 g served, 60 mg per serving; mg per L as analysed256 g served (weighed; volume not recorded)236 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SOM26WD, Instant coffee; 236 g served, 24 mg per serving; mg per L as analysed236 g served (weighed; volume not recorded)100 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SOM35CA, Instant coffee; 189 g served, 59 mg per serving; mg per L as analysed; prepared to taste; milk not recorded189 g served (weighed; volume not recorded)312 mg per litre73.9 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA SUF08WD, Instant coffee; 240 g served, 85 mg per serving; mg per L as analysed240 g served (weighed; volume not recorded)356 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SUF23WO, Instant coffee; 264 g served, 64 mg per serving; mg per L as analysed264 g served (weighed; volume not recorded)241 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SUF24WO, Instant coffee; 255 g served, 41 mg per serving; mg per L as analysed255 g served (weighed; volume not recorded)161 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA SUF32WD, Instant coffee; 284 g served, 65 mg per serving; mg per L as analysed284 g served (weighed; volume not recorded)230.5 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WAL07DO, Instant coffee; 252 g served, 70 mg per serving; mg per L as analysed252 g served (weighed; volume not recorded)279 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WAL09DO, Instant coffee; 235 g served, 49 mg per serving; mg per L as analysed235 g served (weighed; volume not recorded)208 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WAL12DO, Instant coffee; 245 g served, 61 mg per serving; mg per L as analysed245 g served (weighed; volume not recorded)247 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WAL15DO, Instant coffee; 227 g served, 33 mg per serving; mg per L as analysed227 g served (weighed; volume not recorded)147 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WAL17WO, Instant coffee (vending); 192 g served, 60 mg per serving; mg per L as analysed192 g served (weighed; volume not recorded)313 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA WAL26WD, Instant coffee; 435 g served, 62 mg per serving; mg per L as analysed435 g served (weighed; volume not recorded)143 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WAL29WD, Instant coffee; 355 g served, 81 mg per serving; mg per L as analysed355 g served (weighed; volume not recorded)229 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WOR01DO, Instant coffee; 307 g served, 87 mg per serving; mg per L as analysed307 g served (weighed; volume not recorded)282 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WOR02DO, Instant coffee; 139 g served, 35 mg per serving; mg per L as analysed139 g served (weighed; volume not recorded)253 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WOR04DO, Instant coffee; 152 g served, 33 mg per serving; mg per L as analysed152 g served (weighed; volume not recorded)216 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WOR05DO, Instant coffee; 224 g served, 22 mg per serving; mg per L as analysed224 g served (weighed; volume not recorded)96 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WOR12DO, Instant coffee; 227 g served, 35 mg per serving; mg per L as analysed227 g served (weighed; volume not recorded)156 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WOR16WO, Instant coffee; 154 g served, 23 mg per serving; mg per L as analysed154 g served (weighed; volume not recorded)151 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WOR24WO, Instant coffee; 280 g served, 42 mg per serving; mg per L as analysed280 g served (weighed; volume not recorded)149 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WOR26WD, Instant coffee; 260 g served, 48 mg per serving; mg per L as analysed260 g served (weighed; volume not recorded)184 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA WOR27WD, Instant coffee; 271 g served, 59 mg per serving; mg per L as analysed271 g served (weighed; volume not recorded)219 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA YOR07DO, Instant coffee; 220 g served, 27 mg per serving; mg per L as analysed220 g served (weighed; volume not recorded)123 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA YOR09DO, Instant coffee; 258 g served, 51 mg per serving; mg per L as analysed258 g served (weighed; volume not recorded)198 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA YOR12DO, Instant coffee; 231 g served, 59 mg per serving; mg per L as analysed231 g served (weighed; volume not recorded)256 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA YOR13DO, Instant coffee; 275 g served, 116 mg per serving; mg per L as analysed275 g served (weighed; volume not recorded)423 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA YOR16WO, Instant coffee; 284 g served, 32 mg per serving; mg per L as analysed284 g served (weighed; volume not recorded)114 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA YOR17WO, Instant coffee; 267 g served, 54 mg per serving; mg per L as analysed267 g served (weighed; volume not recorded)202 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA YOR19WO, Instant coffee (vending, tea trolley); 239 g served, 59 mg per serving; mg per L as analysed239 g served (weighed; volume not recorded)248 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA YOR23WO, Instant coffee (decaff); 192 g served, 4 mg per serving; mg per L as analysed192 g served (weighed; volume not recorded)21 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Decaffeinated instant coffee
FSA YOR24WO, Instant coffee; 252 g served, 33 mg per serving; mg per L as analysed252 g served (weighed; volume not recorded)131 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA YOR26WD, Instant coffee (decaff); 273 g served, 3 mg per serving; mg per L as analysed273 g served (weighed; volume not recorded)12 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Decaffeinated instant coffee
FSA YOR28WD, Instant coffee; 272 g served, 39 mg per serving; mg per L as analysed272 g served (weighed; volume not recorded)144 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Prepared at home or work; recipe not recorded
FSA YOR31CA, Instant coffee; 235 g served, 45 mg per serving; mg per L as analysed; prepared to taste; milk not recorded235 g served (weighed; volume not recorded)190 mg per litre45 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded
FSA YOR38CA, Instant coffee; 131 g served, 49 mg per serving; mg per L as analysed; prepared to taste; milk not recorded131 g served (weighed; volume not recorded)372 mg per litre88.2 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded

Decaf, brewed: 2 rows, 1 used

SampleServing as recordedCaffeine as recordedUsed asSourceTypeStatus
FSA SOM36CA, Ground coffee (decaff); 105 g served, 8 mg per serving; mg per L as analysed105 g served (weighed; volume not recorded)79 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Brewing method not recorded
FSA WOR40CA, Ground coffee - filter (decaff); 185 g served, 4 mg per serving; mg per L as analysed185 g served (weighed; volume not recorded)20 mg per litre4.7 mg per 237 ml (8 fl oz), in the poolUK Food Standards Agency, 2004measuredIncluded

Latte (one or two shots): 48 rows, 0 used

SampleServing as recordedCaffeine as recordedUsed asSourceTypeStatus
University Cafe cappuccino, Glasgow, purchase 1 (Table 6)195 ml (6.6 fl oz)237 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
University Cafe cappuccino, Glasgow, purchase 2 (Table 6)260 ml (8.8 fl oz)143 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
University Cafe cappuccino, Glasgow, purchase 3 (Table 6)295 ml (10 fl oz)252 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
University Cafe cappuccino, Glasgow, purchase 4 (Table 6)265 ml (9 fl oz)145 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
Patisserie Francoise cappuccino, Glasgow, purchase 1 (Table 6)310 ml (10.5 fl oz)168 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
Patisserie Francoise cappuccino, Glasgow, purchase 2 (Table 6)300 ml (10.1 fl oz)311 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
Patisserie Francoise cappuccino, Glasgow, purchase 3 (Table 6)255 ml (8.6 fl oz)304 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
Patisserie Francoise cappuccino, Glasgow, purchase 4 (Table 6)255 ml (8.6 fl oz)317 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
Artisan Roast cappuccino, Glasgow, purchase 1 (Table 6)178 ml (6 fl oz)89 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
Artisan Roast cappuccino, Glasgow, purchase 2 (Table 6)230 ml (7.8 fl oz)138 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
Artisan Roast cappuccino, Glasgow, purchase 3 (Table 6)115 ml (3.9 fl oz)85 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
Artisan Roast cappuccino, Glasgow, purchase 4 (Table 6)165 ml (5.6 fl oz)92 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
Costa cappuccino, Glasgow, purchase 1 (Table 6)260 ml (8.8 fl oz)241 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
Costa cappuccino, Glasgow, purchase 2 (Table 6)220 ml (7.4 fl oz)237 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
Costa cappuccino, Glasgow, purchase 3 (Table 6)250 ml (8.5 fl oz)211 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
Costa cappuccino, Glasgow, purchase 4 (Table 6)190 ml (6.4 fl oz)201 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
Starbucks cappuccino, Glasgow, purchase 1 (Table 6)285 ml (9.6 fl oz)170 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
Starbucks cappuccino, Glasgow, purchase 2 (Table 6)265 ml (9 fl oz)129 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
Starbucks cappuccino, Glasgow, purchase 3 (Table 6)235 ml (7.9 fl oz)166 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
Starbucks cappuccino, Glasgow, purchase 4 (Table 6)305 ml (10.3 fl oz)157 mgNot usedLudwig et al., 2014measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
Costa Coffee caffe latte or latte macchiato, outlet mean; volume is the study mean latte serving (206.4 mL, range 142 to 312)206 ml (7 fl oz)70.5 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
Starbucks caffe latte or latte macchiato, outlet mean; volume is the study mean latte serving (206.4 mL, range 142 to 312)206 ml (7 fl oz)96.1 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
Tchibo caffe latte or latte macchiato, outlet mean; volume is the study mean latte serving (206.4 mL, range 142 to 312)206 ml (7 fl oz)154.2 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
Green Caffe Nero caffe latte or latte macchiato, outlet mean; volume is the study mean latte serving (206.4 mL, range 142 to 312)206 ml (7 fl oz)74.6 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
Galeria Wypiekow Lubaszka caffe latte or latte macchiato, outlet mean; volume is the study mean latte serving (206.4 mL, range 142 to 312)206 ml (7 fl oz)76.3 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
Przystanek Piekarnia caffe latte or latte macchiato, outlet mean; volume is the study mean latte serving (206.4 mL, range 142 to 312)206 ml (7 fl oz)141 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
Putka caffe latte or latte macchiato, outlet mean; volume is the study mean latte serving (206.4 mL, range 142 to 312)206 ml (7 fl oz)83.5 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
Zabka caffe latte or latte macchiato, outlet mean; volume is the study mean latte serving (206.4 mL, range 142 to 312)206 ml (7 fl oz)122.9 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
McCafe (McDonald's) caffe latte or latte macchiato, outlet mean; volume is the study mean latte serving (206.4 mL, range 142 to 312)206 ml (7 fl oz)92 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
Hotel restaurant caffe latte or latte macchiato, outlet mean; volume is the study mean latte serving (206.4 mL, range 142 to 312)206 ml (7 fl oz)104.5 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
BP Wild Bean Cafe caffe latte or latte macchiato, outlet mean; volume is the study mean latte serving (206.4 mL, range 142 to 312)206 ml (7 fl oz)72.4 mgNot usedWierzejska and Gielecinska, 2024measuredExcluded: Outlet mean only; individual servings and per-outlet volume not reported; the volume shown is the study's mean serving for this drink type, not this outlet's
FSA LON39CA, Ground coffee - Cappuccino; 259 g served, 254 mg per serving; mg per L as analysed259 g served (weighed; volume not recorded)980 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
FSA NOR24WO, Coffee - Cappuccino (vending); 158 g served, 70 mg per serving; mg per L as analysed158 g served (weighed; volume not recorded)440 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA NOR32CA, Ground coffee - Latte; 222 g served, 78 mg per serving; mg per L as analysed222 g served (weighed; volume not recorded)350 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Served volume not recorded (weight only) and shot count not recorded
FSA NOR39CA, Ground coffee - Latte; 232 g served, 95 mg per serving; mg per L as analysed232 g served (weighed; volume not recorded)411 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Served volume not recorded (weight only) and shot count not recorded
FSA PRE08WO, Coffee - Cappuccino (vending); 151 g served, 54 mg per serving; mg per L as analysed151 g served (weighed; volume not recorded)358 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA PRE18CA, Ground coffee - Cappuccino; 246 g served, 94 mg per serving; mg per L as analysed246 g served (weighed; volume not recorded)384 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
FSA PRE40CA, Ground coffee - Cappuccino; 175 g served, 240 mg per serving; mg per L as analysed175 g served (weighed; volume not recorded)1371 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
FSA SCO34CA, Ground coffee - Cappuccino; 348 g served, 251 mg per serving; mg per L as analysed348 g served (weighed; volume not recorded)720 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
FSA SOM19WO, Coffee - Cappuccino (vending); 169 g served, 34 mg per serving; mg per L as analysed169 g served (weighed; volume not recorded)202 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA SUF09CA, Ground coffee - Cappuccino; 223 g served, 81 mg per serving; mg per L as analysed223 g served (weighed; volume not recorded)361 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
FSA SUF25WO, Coffee - Cappuccino (vending); 160 g served, 36 mg per serving; mg per L as analysed160 g served (weighed; volume not recorded)226 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA SUF28WO, Coffee - Cappuccino (vending); 155 g served, 53 mg per serving; mg per L as analysed155 g served (weighed; volume not recorded)340 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Vending machine drink
FSA SUF37CA, Ground coffee - Cappuccino; 172 g served, 33 mg per serving; mg per L as analysed172 g served (weighed; volume not recorded)193 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
FSA SUF39CA, Ground coffee - Cappuccino; 148 g served, 42 mg per serving; mg per L as analysed148 g served (weighed; volume not recorded)287 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
FSA WOR32CA, Ground coffee - Cappuccino; 180 g served, 40 mg per serving; mg per L as analysed180 g served (weighed; volume not recorded)221 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
FSA YOR39CA, Ground coffee - Cappuccino; 196 g served, 128 mg per serving; mg per L as analysed196 g served (weighed; volume not recorded)652 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Cappuccino, not a latte; no cappuccino row in phase 1
FSA YOR40CA, Ground coffee - Latte; 207 g served, 59 mg per serving; mg per L as analysed207 g served (weighed; volume not recorded)287 mg per litreNot usedUK Food Standards Agency, 2004measuredExcluded: Served volume not recorded (weight only) and shot count not recorded

Black tea, brewed: 1 row, 1 used

SampleServing as recordedCaffeine as recordedUsed asSourceTypeStatus
USDA reference: 20 mg per 100 g scaled to the 1 cup (8 fl oz) portion of 237 g237 ml (8 fl oz)47.4 mg47.5 mg per 237 ml (8 fl oz), declared, not pooledUSDA FoodData CentraldeclaredIncluded

Green tea, brewed: 1 row, 1 used

SampleServing as recordedCaffeine as recordedUsed asSourceTypeStatus
USDA reference: 12 mg per 100 g scaled to the 1 fl oz portion of 29.6 g30 ml (1 fl oz)3.55 mg28.5 mg per 237 ml (8 fl oz), declared, not pooledUSDA FoodData CentraldeclaredIncluded

Cola: 1 row, 1 used

SampleServing as recordedCaffeine as recordedUsed asSourceTypeStatus
USDA reference: 9 mg per 100 g scaled to the 12 fl oz can portion of 370 g355 ml (12 fl oz)33.3 mg33.3 mg as served, declared, not pooledUSDA FoodData CentraldeclaredIncluded

Red Bull: 1 row, 1 used

SampleServing as recordedCaffeine as recordedUsed asSourceTypeStatus
Red Bull Energy Drink, 8.4 fl oz can248 ml (8.4 fl oz)80 mg80 mg as served, declared, not pooledRed BulldeclaredIncluded

Monster Energy: 1 row, 1 used

SampleServing as recordedCaffeine as recordedUsed asSourceTypeStatus
Monster Energy original, 16 fl oz can473 ml (16 fl oz)160 mg160 mg as served, declared, not pooledMonster EnergydeclaredIncluded

Celsius: 1 row, 1 used

SampleServing as recordedCaffeine as recordedUsed asSourceTypeStatus
CELSIUS, 12 fl oz can355 ml (12 fl oz)200 mg200 mg as served, declared, not pooledCelsiusdeclaredIncluded

Dark chocolate, 28 g (1 oz): 1 row, 1 used

SampleServing as recordedCaffeine as recordedUsed asSourceTypeStatus
USDA reference: 80 mg per 100 g of 70 to 85% cacao dark chocolate scaled to 28 g28 g22.4 mg22.4 mg per 28 g, declared, not pooledUSDA FoodData CentraldeclaredIncluded

Pre-workout, one scoop: 1 row, 1 used

SampleServing as recordedCaffeine as recordedUsed asSourceTypeStatus
C4 Original Pre-Workout, one scoop1 scoop200 mg200 mg per 1 scoop, declared, not pooledCellucordeclaredIncluded

Caffeine pill, one caplet: 1 row, 1 used

SampleServing as recordedCaffeine as recordedUsed asSourceTypeStatus
NoDoz, one 200 mg caplet1 caplet200 mg200 mg per 1 caplet, declared, not pooledNoDozdeclaredIncluded

References

Every source in the dataset, by tier, including those cited in the text with no serving rows. Links marked as Internet Archive captures (3 of them) are copies of the publisher's or maker's own page, used where the live page was gone or blocked.

TierCitationLinkChecked
2EFSA. EFSA explains risk assessment: caffeine. 2015.efsa.europa.eu2026-10-01
2US Food and Drug Administration. Spilling the beans: how much caffeine is too much? Consumer update, content current as of 08/28/2024.fda.gov2026-10-02
3Al-Baqami SM, AlZughabi TA, Almostady MA, Alotaibi NA, Almostadi A, AlRaddadi TM, Bahaffi SO. Determination of caffeine content in coffee drinks prepared in some coffee shops in the local market in Jeddah City, Saudi Arabia. Open Chemistry 2023;21:20230131.doi.org2026-10-02
3Crozier TWM, Stalmach A, Lean MEJ. Espresso coffees, caffeine and chlorogenic acid intake: potential health implications. Food & Function 2012;3:30-33.eprints.gla.ac.uk2026-10-01
3Food Standards Agency. Survey of caffeine levels in hot beverages. Food Survey Information Sheet 53/04, April 2004, with Annex 1.Internet Archive capture2026-10-02
3Fuller M, Rao NZ. The effect of time, roasting temperature, and grind size on caffeine and chlorogenic acid concentrations in cold brew coffee. Scientific Reports 2017;7:17979.pmc.ncbi.nlm.nih.gov2026-10-02
3Lindsey ZR, Williams JR, Burgess JS, Moore NT, Splichal PM. Caffeine content in filter coffee brews as a function of degree of roast and extraction yield. Scientific Reports 2024;14:29126.pmc.ncbi.nlm.nih.gov2026-10-02
3Ludwig IA, Mena P, Calani L, Cid C, Del Rio D, Lean MEJ, Crozier A. Variations in caffeine and chlorogenic acid contents of coffees: what are we drinking? Food & Function 2014;5:1718-1726.eprints.gla.ac.uk2026-10-02
3McCusker RR, Goldberger BA, Cone EJ. Caffeine content of specialty coffees. Journal of Analytical Toxicology 2003;27(7):520-522.doi.org2026-10-02
3Wierzejska RE, Gielecinska I. Evaluation of the caffeine content in servings of popular coffees in terms of its safe intake: can we drink 3 to 5 cups of coffee per day, as experts advise? Nutrients 2024;16(15):2385.pmc.ncbi.nlm.nih.gov2026-10-02
4USDA FoodData Central. Beverages, tea, black, brewed, prepared with tap water. SR Legacy, FDC ID 173227.fdc.nal.usda.gov2026-10-02
4USDA FoodData Central. Beverages, coffee, brewed, prepared with tap water. SR Legacy, FDC ID 171890.fdc.nal.usda.gov2026-10-02
4USDA FoodData Central. Beverages, carbonated, cola, regular. SR Legacy, FDC ID 174852.fdc.nal.usda.gov2026-10-02
4USDA FoodData Central. Chocolate, dark, 70-85% cacao solids. SR Legacy, FDC ID 170273.fdc.nal.usda.gov2026-10-02
4USDA FoodData Central. Beverages, coffee, brewed, espresso, restaurant-prepared. SR Legacy, FDC ID 171891.fdc.nal.usda.gov2026-10-02
4USDA FoodData Central. Beverages, tea, green, brewed, regular. SR Legacy, FDC ID 171917.fdc.nal.usda.gov2026-10-02
5Cellucor. C4 Original Pre-Workout Powder, product page.cellucor.com2026-10-02
5Celsius Holdings. Essential Facts, caffeine content by product line.celsius.com2026-10-02
5Monster Energy Company. Monster Energy (original green), product page, US site.Internet Archive capture2026-10-02
5NoDoz. Drug Facts label, NoDoz caplets.nodoz.com2026-10-02
5Red Bull. How much caffeine is in a can of Red Bull Energy Drink? Q&A page, US site.Internet Archive capture2026-10-02
5Starbucks Coffee Company. Espresso, product 410, nutrition by size.starbucks.com2026-10-02
5Starbucks Coffee Company. Medium Roast, Pike Place Roast, product 480, nutrition by size.starbucks.com2026-10-02

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