110 documented drink records

Caffeine content database

Compare a clearly defined serving and market—not an ambiguous “cup”. Manufacturer values are labelled separately from representative database values, with the source and review date shown on every detail page.

How to read this databaseListed value = stated by the linked manufacturer. Reference value = representative public-database entry. Calculated value = transparent arithmetic from a linked manufacturer table. Amber evidence flags identify secondary, indicative or older approximate figures. Product labels remain the best source for the exact drink in your hand.

Showing 110 of 110 records.

Coffee & café

General reference · 8 fl oz / 237 ml

Brewed coffee

95 mg caffeine40.1 mg per 100 ml

A useful general estimate for an ordinary cup of brewed coffee. Bean, roast and preparation can change the dose substantially.

UK · Regular / 355 mlSecondary reported figure

Caffè Nero Americano

191 mg caffeine53.8 mg per 100 ml

Which? reported 191 mg for a 355 ml regular Caffè Nero Americano in its August 2026 UK comparison.

UK · Regular / 355 mlSecondary reported figure

Caffè Nero Cappuccino

221 mg caffeine62.3 mg per 100 ml

Which? reported 221 mg for a 355 ml regular Caffè Nero cappuccino in its August 2026 UK comparison.

UK · 30 ml shotSecondary reported figure

Caffè Nero Espresso

67 mg caffeine223.3 mg per 100 ml

Which? reported 67 mg for a 30 ml Caffè Nero espresso in its August 2026 UK high-street comparison.

UK · 237 mlSecondary reported figure

Caffè Nero Flat White

105 mg caffeine44.3 mg per 100 ml

Which? reported 105 mg for a 237 ml Caffè Nero flat white in its August 2026 UK comparison.

UK · Regular / 355 mlSecondary reported figure

Caffè Nero Latte

175 mg caffeine49.3 mg per 100 ml

Which? reported 175 mg for a 355 ml regular Caffè Nero latte in its August 2026 UK comparison.

UK · 2 shots / 1 pod

Costa Decaf coffee

2 mg caffeine

Costa lists 2 mg for its standard two-shot decaf pod serving. Decaf is lower-caffeine, not necessarily caffeine-free.

UK · 1 shot

Costa Ristretto

90 mg caffeine

Costa’s current UK guide lists caffeine for one- and two-shot Ristretto servings.

2 documented servings
UK · Medium

Costa Signature Blend Americano

325 mg caffeine

These estimates combine Costa’s Americano shot-count table with its Signature Blend caffeine-by-shot figures.

3 documented servings
UK · Medium

Costa Signature Blend Cappuccino

325 mg caffeine

These estimates combine Costa’s Cappuccino shot-count table with its Signature Blend caffeine-by-shot figures.

3 documented servings
UK · Standard

Costa Signature Blend Cortado

141 mg caffeine

Costa lists its Cortado as two Corto shots and publishes 141 mg for that extraction.

UK · 1 shot

Costa Signature Blend espresso

100 mg caffeine

Costa’s current UK guide publishes caffeine values for one to four Signature Blend espresso shots and notes that natural and preparation variation remains.

4 documented servings
UK · Standard

Costa Signature Blend Flat Black

241 mg caffeine

Costa lists the Flat Black with three Cortissimo shots and publishes 241 mg for that extraction.

UK · Small

Costa Signature Blend Flat White

241 mg caffeine

Costa lists the standard Flat White as three Cortissimo shots and publishes 241 mg for that extraction.

UK · Medium

Costa Signature Blend Latte

200 mg caffeine

These estimates combine Costa’s Latte shot-count table with its published Signature Blend caffeine-by-shot figures.

4 documented servings
UK · Medium

Costa Signature Blend Mocha

325 mg caffeine

These values combine Costa’s Mocha shot-count table with its published Signature Blend caffeine-by-shot figures.

3 documented servings
General reference · 1 fl oz / 30 ml

Espresso

63 mg caffeine210.0 mg per 100 ml

A typical single espresso contains less caffeine than a full brewed coffee, although it is more concentrated by volume.

UK · Large / 382 mlIndicative supplier figure

Greggs Americano

257 mg caffeine67.3 mg per 100 ml

Which? reported an indicative 257 mg for a 382 ml large Greggs Americano in August 2026; it is a supplier guide, not an exact measurement.

UK · Large / 327 mlIndicative supplier figure

Greggs Cappuccino

235 mg caffeine71.9 mg per 100 ml

Which? reported an indicative 235 mg for a 327 ml large Greggs cappuccino in August 2026; it is a supplier guide, not an exact measurement.

UK · 30 ml shotIndicative supplier figure

Greggs Espresso

75 mg caffeine250.0 mg per 100 ml

Which? reported an indicative 75 mg for a 30 ml Greggs espresso in August 2026; Greggs said its supplier figures were a guide rather than an exact measure.

UK · 222 mlIndicative supplier figure

Greggs Flat White

150 mg caffeine67.6 mg per 100 ml

Which? reported an indicative 150 mg for a 222 ml Greggs flat white in August 2026; it is a supplier guide, not an exact measurement.

UK · Large / 380 gIndicative supplier figure

Greggs Latte

208 mg caffeine

Which? reported an indicative 208 mg for a large Greggs latte listed at 380 g in August 2026. No millilitre volume is inferred from its weight.

UK · RegularOlder first-party approximate

McDonald’s Cappuccino

175 mg caffeine

McDonald’s UK reported approximately 175 mg for a regular cappuccino and 209 mg for a large in a 2018 FAQ.

2 documented servings
UK · RegularOlder first-party approximate

McDonald’s Hot Chocolate

13 mg caffeine

McDonald’s UK reported approximately 13 mg for a regular hot chocolate and 17 mg for a large in a 2018 FAQ.

2 documented servings
UK · 1 capsule / 40 ml

Nespresso Original espresso

65 mg caffeine162.5 mg per 100 ml

This is Nespresso’s worked example for a 5 g pure-Arabica Original capsule. The wider Original range varies substantially by blend.

UK · 355 mlSecondary reported figure

Pret Americano

180 mg caffeine50.7 mg per 100 ml

Which? reported 180 mg for a 355 ml Pret Americano in its August 2026 UK comparison.

UK · 355 mlSecondary reported figure

Pret Cappuccino

180 mg caffeine50.7 mg per 100 ml

Which? reported 180 mg for a 355 ml Pret cappuccino in its August 2026 UK comparison.

UK · 50 ml shotSecondary reported figure

Pret Espresso

180 mg caffeine360.0 mg per 100 ml

Which? reported 180 mg for a 50 ml Pret espresso in its August 2026 UK comparison.

UK · 355 mlSecondary reported figure

Pret Filter Coffee

271 mg caffeine76.3 mg per 100 ml

Which? reported 271 mg for a 355 ml Pret filter coffee in its August 2026 UK comparison.

UK · 237 mlSecondary reported figure

Pret Flat White

180 mg caffeine75.9 mg per 100 ml

Which? reported 180 mg for a 237 ml Pret flat white in its August 2026 UK comparison.

UK · 355 mlSecondary reported figure

Pret Latte

180 mg caffeine50.7 mg per 100 ml

Which? reported 180 mg for a 355 ml Pret latte in its August 2026 UK comparison.

UK · 355 mlSecondary reported figure

Pret Matcha Latte

28 mg caffeine7.9 mg per 100 ml

Which? reported 28 mg for a 355 ml hot Pret matcha latte in its August 2026 UK comparison.

US · 12 fl oz / 355 ml

Starbucks brewed coffee — Tall

260 mg caffeine73.2 mg per 100 ml

A representative Tall brewed coffee value published by Starbucks. The selected roast and brewing conditions can affect the dose.

UK · Grande

Starbucks UK Americano

133.7 mg caffeine

Starbucks UK's April 2026 guide lists 44.6-178.2 mg caffeine across the documented Americano sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Caffè Latte

89.1 mg caffeine

Starbucks UK's April 2026 guide lists 44.6-133.7 mg caffeine across the documented Caffè Latte sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Cappuccino

89.1 mg caffeine

Starbucks UK's April 2026 guide lists 44.6-133.7 mg caffeine across the documented Cappuccino sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Caramel Frappuccino

30.8 mg caffeine

Starbucks UK's April 2026 guide lists 16-39.5 mg caffeine across the documented Caramel Frappuccino sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Caramel Macchiato

89.1 mg caffeine

Starbucks UK's April 2026 guide lists 44.6-133.7 mg caffeine across the documented Caramel Macchiato sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Chocolate Cream Frappuccino

10.3 mg caffeine

Starbucks UK's April 2026 guide lists 7.7-12.9 mg caffeine across the documented Chocolate Cream Frappuccino sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Classic Hot Chocolate

26.1 mg caffeine

Starbucks UK's April 2026 guide lists 13.4-32.2 mg caffeine across the documented Classic Hot Chocolate sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Classic Iced Cappuccino

89.1 mg caffeine

Starbucks UK's April 2026 guide lists 89.1-133.7 mg caffeine across the documented Classic Iced Cappuccino sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Coffee Frappuccino

31.4 mg caffeine

Starbucks UK's April 2026 guide lists 17.3-39.5 mg caffeine across the documented Coffee Frappuccino sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Cold Brew

264.7 mg caffeine

Starbucks UK's April 2026 guide lists 193.3-285.1 mg caffeine across the documented Cold Brew sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Short

Starbucks UK Cortado

70.9 mg caffeine

Starbucks UK's April 2026 guide lists 70.9 mg caffeine across the documented Cortado sizes. Values apply to standard recipes before customisation.

1 documented servings
UK · Grande

Starbucks UK Double Chocolatey Chip Cream Frappuccino

10.3 mg caffeine

Starbucks UK's April 2026 guide lists 7.7-12.6 mg caffeine across the documented Double Chocolatey Chip Cream Frappuccino sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Mini

Starbucks UK Doubleshot Iced Coffee

89.1 mg caffeine

Starbucks UK's April 2026 guide lists 89.1 mg caffeine across the documented Doubleshot Iced Coffee sizes. Values apply to standard recipes before customisation.

1 documented servings
UK · Mini

Starbucks UK Doubleshot Vanilla Iced Coffee

89.1 mg caffeine

Starbucks UK's April 2026 guide lists 89.1 mg caffeine across the documented Doubleshot Vanilla Iced Coffee sizes. Values apply to standard recipes before customisation.

1 documented servings
UK · Single

Starbucks UK Espresso

44.6 mg caffeine

Starbucks UK's April 2026 guide lists 44.6-89.1 mg caffeine across the documented Espresso sizes. Values apply to standard recipes before customisation.

2 documented servings
UK · Single

Starbucks UK Espresso Macchiato

44.6 mg caffeine

Starbucks UK's April 2026 guide lists 44.6-89.1 mg caffeine across the documented Espresso Macchiato sizes. Values apply to standard recipes before customisation.

2 documented servings
UK · Short

Starbucks UK Flat White

89.1 mg caffeine

Starbucks UK's April 2026 guide lists 89.1 mg caffeine across the documented Flat White sizes. Values apply to standard recipes before customisation.

1 documented servings
UK · Grande

Starbucks UK Freshly Brewed Coffee

254.6 mg caffeine

Starbucks UK's April 2026 guide lists 131.7-324.2 mg caffeine across the documented Freshly Brewed Coffee sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Iced Americano

133.7 mg caffeine

Starbucks UK's April 2026 guide lists 89.1-178.2 mg caffeine across the documented Iced Americano sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Iced Brown Sugar Oat Shaken Espresso

128.2 mg caffeine

Starbucks UK's April 2026 guide lists 85.5-171 mg caffeine across the documented Iced Brown Sugar Oat Shaken Espresso sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Iced Brown Sugar Shaken Espresso

128.2 mg caffeine

Starbucks UK's April 2026 guide lists 85.5-171 mg caffeine across the documented Iced Brown Sugar Shaken Espresso sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Iced Caramel Macchiato

89.1 mg caffeine

Starbucks UK's April 2026 guide lists 89.1-133.7 mg caffeine across the documented Iced Caramel Macchiato sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Iced Caramelised Macadamia Oat Shaken Espresso

85.1 mg caffeine

Starbucks UK's April 2026 guide lists 56.7-113.4 mg caffeine across the documented Iced Caramelised Macadamia Oat Shaken Espresso sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Iced Chocolate

26 mg caffeine

Starbucks UK's April 2026 guide lists 19.8-32.5 mg caffeine across the documented Iced Chocolate sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Iced Latte

89.1 mg caffeine

Starbucks UK's April 2026 guide lists 89.1-133.7 mg caffeine across the documented Iced Latte sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Iced Latte Macchiato

89.1 mg caffeine

Starbucks UK's April 2026 guide lists 89.1-133.7 mg caffeine across the documented Iced Latte Macchiato sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Iced Mocha

113.4 mg caffeine

Starbucks UK's April 2026 guide lists 107.3-164 mg caffeine across the documented Iced Mocha sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Iced Toasted Vanilla Oat Shaken Espresso

85.1 mg caffeine

Starbucks UK's April 2026 guide lists 56.7-113.4 mg caffeine across the documented Iced Toasted Vanilla Oat Shaken Espresso sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Iced White Mocha

89.1 mg caffeine

Starbucks UK's April 2026 guide lists 89.1-133.6 mg caffeine across the documented Iced White Mocha sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Java Chip Frappuccino

39.9 mg caffeine

Starbucks UK's April 2026 guide lists 14.3-53 mg caffeine across the documented Java Chip Frappuccino sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Latte Macchiato

89.1 mg caffeine

Starbucks UK's April 2026 guide lists 44.6-133.7 mg caffeine across the documented Latte Macchiato sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Matcha Cream Frappuccino

74.2 mg caffeine

Starbucks UK's April 2026 guide lists 36.6-92.7 mg caffeine across the documented Matcha Cream Frappuccino sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Mocha

113.4 mg caffeine

Starbucks UK's April 2026 guide lists 56.7-164 mg caffeine across the documented Mocha sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Mocha Frappuccino

37.9 mg caffeine

Starbucks UK's April 2026 guide lists 16.1-49.7 mg caffeine across the documented Mocha Frappuccino sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Vanilla Iced Latte

66.2 mg caffeine

Starbucks UK's April 2026 guide lists 66.2-99.2 mg caffeine across the documented Vanilla Iced Latte sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK White Mocha

89.1 mg caffeine

Starbucks UK's April 2026 guide lists 44.5-133.6 mg caffeine across the documented White Mocha sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK White Mocha Frappuccino

31.2 mg caffeine

Starbucks UK's April 2026 guide lists 16.4-39.7 mg caffeine across the documented White Mocha Frappuccino sizes. Values apply to standard recipes before customisation.

4 documented servings

Energy drinks

US · 1 can

CELSIUS Energy

200 mg caffeine

Standard CELSIUS and Vibe cans contain 200 mg. CELSIUS Essentials is a different range and contains 270 mg per can.

UK · 500 ml can

Lucozade Alert

160 mg caffeine32.0 mg per 100 ml

Lucozade Alert contains 32 mg per 100 ml, giving 160 mg in a 500 ml can.

UK · 500 ml can

Monster Energy Original Green

160 mg caffeine32.0 mg per 100 ml

Monster Energy UK lists 160 mg in its Original Green 500 ml can. Other Monster ranges and markets can differ.

UK · 500 ml can

Monster Ultra White

150 mg caffeine30.0 mg per 100 ml

Monster Energy UK lists 150 mg of caffeine in the 500 ml zero-sugar Ultra White can.

US · 16 fl oz / 473 ml

PRIME Energy

200 mg caffeine42.3 mg per 100 ml

The current 16 fl oz PRIME Energy can lists 200 mg. This is not the caffeine-free PRIME Hydration drink.

UK · 250 ml can

Red Bull Energy Drink

80 mg caffeine32.0 mg per 100 ml

Red Bull GB lists 80 mg of caffeine in each standard 250 ml can.

UK · 250 ml can

Red Bull Sugarfree

80 mg caffeine32.0 mg per 100 ml

Red Bull GB lists caffeine for three Sugarfree can sizes. This record keeps each published serving separate.

3 documented servings
US · 16 fl oz / 473 ml

REIGN Total Body Fuel

300 mg caffeine63.4 mg per 100 ml

A US 16 fl oz REIGN can lists 300 mg. Formulations in other countries can be lower, so check the local label.

US · 16 fl oz / 473 ml

Rockstar Original Energy

160 mg caffeine33.8 mg per 100 ml

Caffeine for the current US 16 fl oz Original can. Other Rockstar lines include materially different caffeine amounts.

Tea

General reference · 8 fl oz / 237 ml

Black tea

48 mg caffeine20.3 mg per 100 ml

Tea caffeine varies with the leaves, water temperature and brewing time.

General reference · 8 fl oz / 237 ml

Green tea

29 mg caffeine12.2 mg per 100 ml

A representative brewed green tea value; individual products and brewing methods vary.

UK · Grande

Starbucks UK Chai Tea

0.7 mg caffeine

Starbucks UK's April 2026 guide lists 0.7-1.3 mg caffeine across the documented Chai Tea sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Chai Tea Latte

52.4 mg caffeine

Starbucks UK's April 2026 guide lists 26.2-65.5 mg caffeine across the documented Chai Tea Latte sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Classic Shaken Iced Black Tea

0.7 mg caffeine

Starbucks UK's April 2026 guide lists 0.5-0.8 mg caffeine across the documented Classic Shaken Iced Black Tea sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Classic Shaken Iced Black Tea Lemonade

0.7 mg caffeine

Starbucks UK's April 2026 guide lists 0.5-0.8 mg caffeine across the documented Classic Shaken Iced Black Tea Lemonade sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Classic Shaken Iced Green Tea

1 mg caffeine

Starbucks UK's April 2026 guide lists 0.6-1.1 mg caffeine across the documented Classic Shaken Iced Green Tea sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Classic Shaken Iced Green Tea Lemonade

1 mg caffeine

Starbucks UK's April 2026 guide lists 0.6-1.1 mg caffeine across the documented Classic Shaken Iced Green Tea Lemonade sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Earl Grey Tea

1.1 mg caffeine

Starbucks UK's April 2026 guide lists 1.1-2.1 mg caffeine across the documented Earl Grey Tea sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Emperor's Clouds & Mist Tea

0.9 mg caffeine

Starbucks UK's April 2026 guide lists 0.9-1.8 mg caffeine across the documented Emperor's Clouds & Mist Tea sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK English Breakfast Tea

41 mg caffeine

Starbucks UK's April 2026 guide lists 41-82 mg caffeine across the documented English Breakfast Tea sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Iced Chai Tea Latte

52.4 mg caffeine

Starbucks UK's April 2026 guide lists 39.3-65.5 mg caffeine across the documented Iced Chai Tea Latte sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Iced Matcha Green Tea Latte

84.6 mg caffeine

Starbucks UK's April 2026 guide lists 56-113 mg caffeine across the documented Iced Matcha Green Tea Latte sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Jasmine Pearls Tea

1.4 mg caffeine

Starbucks UK's April 2026 guide lists 1.4-2.8 mg caffeine across the documented Jasmine Pearls Tea sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Lemon Iced Tea

1 mg caffeine

Starbucks UK's April 2026 guide lists 0.6-1.1 mg caffeine across the documented Lemon Iced Tea sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Matcha Green Tea Latte

83 mg caffeine

Starbucks UK's April 2026 guide lists 27.9-111.5 mg caffeine across the documented Matcha Green Tea Latte sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Mint Citrus Green Tea

0.3 mg caffeine

Starbucks UK's April 2026 guide lists 0.3-0.6 mg caffeine across the documented Mint Citrus Green Tea sizes. Values apply to standard recipes before customisation.

4 documented servings
UK · Grande

Starbucks UK Peach Iced Tea

1 mg caffeine

Starbucks UK's April 2026 guide lists 0.6-1.1 mg caffeine across the documented Peach Iced Tea sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Youthberry Tea

0.2 mg caffeine

Starbucks UK's April 2026 guide lists 0.2-0.4 mg caffeine across the documented Youthberry Tea sizes. Values apply to standard recipes before customisation.

4 documented servings

Soft drinks

UK · 330 ml can

Coca-Cola Original Taste

34 mg caffeine10.3 mg per 100 ml

Coca-Cola Great Britain lists 34 mg in a 330 ml can of Coca-Cola Original Taste.

UK · 330 ml can

Coca-Cola Zero Sugar Zero Caffeine

0 mg caffeine0.0 mg per 100 ml

Coca-Cola Great Britain describes this separately labelled product as containing zero caffeine. It is not the standard Coca-Cola Zero Sugar recipe.

UK · 330 ml can

Diet Coke

46 mg caffeine13.9 mg per 100 ml

Coca-Cola Great Britain lists 46 mg in a 330 ml can of Diet Coke.

US · 12 fl oz / 355 ml

Pepsi

38 mg caffeine10.7 mg per 100 ml

Caffeine content for one standard US can. Pepsi notes that formulations can change, so check current packaging.

US · 20 fl oz / 591 ml

Pepsi Zero Sugar

63 mg caffeine10.7 mg per 100 ml

The current US 20 fl oz bottle lists 63 mg. Smaller cans and recipes sold in other markets can differ.

UK · Grande

Starbucks UK Cool Lime Refresha Drink

9.8 mg caffeine

Starbucks UK's April 2026 guide lists 7.4-12.4 mg caffeine across the documented Cool Lime Refresha Drink sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Dragon Coconut Refresha Drink

4.9 mg caffeine

Starbucks UK's April 2026 guide lists 3.7-6.2 mg caffeine across the documented Dragon Coconut Refresha Drink sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Frozen Melon Pearls Refresha

7.4 mg caffeine

Starbucks UK's April 2026 guide lists 6.5-8.7 mg caffeine across the documented Frozen Melon Pearls Refresha sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Mango Dragonfruit Refresha Drink

4.9 mg caffeine

Starbucks UK's April 2026 guide lists 3.7-6.2 mg caffeine across the documented Mango Dragonfruit Refresha Drink sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Melon Pearls Refresha

9.8 mg caffeine

Starbucks UK's April 2026 guide lists 7.4-12.4 mg caffeine across the documented Melon Pearls Refresha sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Strawberry Acai Refresha Drink

4.9 mg caffeine

Starbucks UK's April 2026 guide lists 3.7-6.2 mg caffeine across the documented Strawberry Acai Refresha Drink sizes. Values apply to standard recipes before customisation.

3 documented servings
UK · Grande

Starbucks UK Very Berry Refresha Drink

49.2 mg caffeine

Starbucks UK's April 2026 guide lists 37.2-61.6 mg caffeine across the documented Very Berry Refresha Drink sizes. Values apply to standard recipes before customisation.

3 documented servings