How much caffeine does Starbucks espresso coffee have?

How much caffeine does Starbucks espresso coffee have?

Starbucks has some of the highest caffeine amounts of any coffee chain.

These charts were compiled using data from Starbucks in-store leaflets, their website, their app, and from independent laboratory tests. It’s a big job keeping this up to date – there are over 750 variations listed on this page!

Caffeine in coffee can vary (due to coffee bean origin and blend used) and may be more or less than the amounts shown.

Now showing listings for their Blonde Espresso based beverages and their Clover Brewed® coffee beverages.

Starbucks Hot Beverage Caffeine

USA UK/Europe

BeverageShort (8 fl oz)Tall (12 fl oz)Grande (16 fl oz)Venti (20 fl oz)
Pike Place Brewed Coffee 155 mg 235 mg 310 mg 410 mg
Blonde Roast 180 mg 270 mg 360 mg 475 mg
Featured Dark Roast 130 mg 195 mg 260 mg 340 mg
Clover® Brewed Coffees
-Reserve roasts 190 mg 280 mg 380 mg 470 mg
-Blonde roasts 155 mg 255 mg 340 mg 425 mg
-Medium roasts 170 mg 280 mg 375 mg 445 mg
-Dark roasts 190 mg 280 mg 380 mg 470 mg
Brewed Decaf Coffee 15 mg 20 mg 25 mg 30 mg
Caffè Americano 75 mg 150 mg 225 mg 300 mg
Blonde Caffè Americano 85 mg 170 mg 255 mg 340 mg
Caffè Latte (also flavored) 75 mg 75 mg 150 mg 150 mg
Blonde Caffè Latte (also flavored) 85 mg 85 mg 170 mg 170 mg
Cordusio Mocha 155 mg 155 mg 315 mg 320 mg
Reserve Latte 135 mg 135 mg 135 mg 265 mg
Latte Macchiato 150 mg 150 mg 225 mg 225 mg
Caffè Mocha (also flavored Mochas) 90 mg 95 mg 175 mg 185 mg
Cappuccino 75 mg 75 mg 150 mg 150 mg
Blonde Cappuccino 85 mg 85 mg 170 mg 170 mg
Flat White 130 mg 130 mg 195 mg 195 mg
Blonde Flat White 150 mg 150 mg 225 mg 225 mg
Caramel Macchiato 75 mg 75 mg 150 mg 150 mg
Caramel Flan Latte 75 mg 75 mg 150 mg 150 mg
Molten Chocolate Latte 95 mg 100 mg 185 mg 195 mg
Espresso 75 mg
(solo)
150 mg
(doppio)
Blonde Espresso 85 mg
(solo)
170 mg
(doppio)
Espresso Macchiato 75 mg
(solo)
150 mg
(doppio)
Espresso con Panna 75 mg
(solo)
150 mg
(doppio)
Hazelnut Macchiato 75 mg 75 mg 150 mg 150 mg
Cinnamon Dolce Latte 75 mg 75 mg 150 mg 150 mg
Pumpkin Spice 75 mg 75 mg 150 mg 150 mg
Salted Caramel Mocha 90 mg 95 mg 175 mg 185 mg
Tiramisu Latte 75 mg 75 mg 150 mg 150 mg
Smoked Butterscotch Latte 75 mg 75 mg 150 mg 150 mg
Toasted Graham Latte 75 mg 75 mg 150 mg 150 mg
Peppermint Mocha 75 mg 75 mg 150 mg 150 mg
White Chocolate Mocha 75 mg 75 mg 150 mg 150 mg
Hot Chocolate 15 mg 20 mg 25 mg 30 mg
Caffe Misto 75 mg 115 mg 150 mg 195 mg
Oprah Chai Tea Latte 25 mg 40 mg 50 mg 65 mg
Classic Chai Tea Latte 50 mg 70 mg 95 mg 120 mg
Teavana Earl Grey Latte 40 mg 40 mg 80 mg 80 mg
Teavana Green Tea Latte 25 mg 55 mg 80 mg 110 mg
Teavana Royal English Breakfast Latte 40 mg 40 mg 80 mg 80 mg
Pineapple Kona Pop Brewed Tea 0 mg 0 mg 0 mg o mg
Teavana Earl Grey 40 mg 40 mg 80 mg 80 mg
Teavana Emperor’s Cloud & Mist 0-15 mg 0-15 mg 15-25 mg 15-25 mg
Teavana Jade Citrus Mint 15-25 mg 15-25 mg 40 mg 40 mg
Teavana Mint Majesty 0 mg 0 mg 0 mg 0 mg
Teavana Oprah Chai Brewed Tea 15-25 mg 15-25 mg 40 mg 40 mg
Teavana Passion Tango 0 mg 0 mg 0 mg 0 mg
Teavana Peach Tranquility 0 mg 0 mg 0 mg 0 mg
Teavana Royal English Breakfast 40 mg 40 mg 80 mg 80 mg
Defense Wellness White Tea 25 mg 25 mg 40 mg 40 mg
Citrus Defender White Tea 25 mg 25 mg 40 mg 40 mg
Teavana Youthberry 0-15 mg 0-15 mg 15-25 mg 15-25 mg
White Hot Chocolate 0 mg 0 mg 0 mg 0 mg
Starbucks Verismo 40-45 mg
espresso pod
50-60 mg
brewed pod

BeverageShort (236ml)Tall (254ml)Grande (473ml)Venti (591ml)
Brewed Coffee 157 mg 229 mg 308 mg 387 mg
Brewed Decaf Coffee 15 mg 20 mg 25 mg 30 mg
Caffè Americano 75 mg 150 mg 225 mg 300 mg
Cortado 157 mg
Caffè Latte (also flavored) 75 mg 150 mg 150 mg 225 mg
Turmeric Latte 75 mg 150 mg 150 mg 225 mg
Caffè Mocha (also flavored Mochas) 85 mg 165 mg 170 mg 250 mg
Cappuccino 75 mg 150 mg 150 mg 225 mg
Caramel Macchiato 75 mg 150 mg 150 mg 225 mg
Flat White 150 mg
Espresso 75 mg
(solo)
150 mg
(doppio)
Piccino 157 mg
(doppio)
Espresso Macchiato 75 mg
(solo)
150 mg
(doppio)
Espresso con Panna 75 mg
(solo)
150 mg
(doppio)
Pumpkin Spice Latte 75 mg 150 mg 150 mg 174 mg
Salted Caramel Mocha 99 mg 192 mg 199 mg 292 mg
Orange Mocha 91 mg 171 mg 181 mg 270 mg
Egg Nog Latte 87 mg 87 mg 174 mg 174 mg
Gingerbread Latte 87 mg 87 mg 174 mg 174 mg
Toffee Nut Latte 87 mg 87 mg 174 mg 174 mg
Vanilla Spiced Cardamom Latte 87 mg 87 mg 174 mg 174 mg
White Chocolate Mocha 75 mg 150 mg 150 mg 225 mg
Signature Hot Chocolate 10 mg 15 mg 20 mg 25 mg
Classic Hot Chocolate 15 mg 20 mg 25 mg 30 mg
Vanilla Spice Hot Chocolate 4 mg 5 mg 7 mg 9 mg
Salted Caramel Hot Chocolate 12 mg 18 mg 25 mg 31 mg
Caffe Misto 79 mg 121 mg 142 mg 185 mg
Chai Tea Latte 46 mg 69 mg 92 mg 115 mg
Matcha Tea Latte 30 mg 60 mg 90 mg 120 mg
Rooibos Latte 0 0 0 0
White Hot Chocolate 0 0 0 0
Starbucks Verismo 40-45 mg
espresso pod
50-60 mg
brewed pod

Note: The caffeine amounts in Teavana retail teas are found here.

Starbucks K-Cups

Starbucks standard K-Cup coffee pods have on average 130 mg of caffeine per 8 fluid ounce cup. Starbucks 2X (2x caffeine) pods (formerly Starbucks Plus) have 260 mg per 8 fluid ounce cup. The 2X variety contains coffee and additional coffee extracts.

Lighter roasts will contain slightly more and darker roasts, slightly less. But, all coffee pods will vary in caffeine so 130 mg and/or 260 mg is the average amount to expect.

How Many Shots?

The caffeine amounts of the espresso-based drinks show that a Tall Latte (and Cappuccino) has just a single shot of coffee. For a 12 oz cup size – this is quite weak and has considerably less caffeine than a brewed coffee of the same size.

Most conscientious coffee vendors serve at least a double-shot in drinks over 8 ounces. Most provide double-shots (by default) in regular takeaway cups. This is because many takeaway cups tend to have more volume than their china or crockery counterparts.

Starbucks Caffeine Deception?

In 2020 a class-action lawsuit was filed against Starbucks claiming that they are cheating customers out of caffeine.

The suit alleges that most customers believe a larger sized cup means more caffeine. However, their espresso-based drinks – both the short and tall as well as the grande and venti – have the same number of shots (and therefore the same amount of caffeine).

What people are paying for is more milk and syrups and not more espresso. The suit claims that this is fraud under California law.

This practice is typical of many coffee chains that have a set espresso shot formulation when making drinks. Customers should be aware of how many shots are in each size cup.

Starbucks does a great job of publishing caffeine information but many people don’t have the app or our website up when standing in line to order.

Frappuccinos, Iced Coffees, Iced Teas, Refreshers

USA UK/Europe

BeverageTall (12 fl oz)Grande (16 fl oz)Venti (24 fl oz)Trenta (30 fl oz)
Cold Brew Coffee 155 mg 205 mg 310 mg 360 mg
Cold Brew Coffee w/milk 150 mg 200 mg 300 mg 330 mg
Vanilla Sweet Cream Cold Brew 140 mg 185 mg 275 mg 320 mg
Reserve Cold Brew 150 mg 200 mg 300 mg
Protein Blended Cold Brew 180 mg
Cold Foam Cold Brew 155 mg 205 mg 310 mg 360 mg
Salted Cream Cold Foam CB 140 mg 185 mg 275 mg 320 mg
Pumpkin Cream Cold Brew 145 mg 185 mg 275 mg 315 mg
Irish Cream Cold Brew 145 mg 185 mg 275 mg 315 mg
Salted Cream Nitro 200 mg 270 mg
Reserve Nitro Cold Brew 280 mg 400 mg
Cold Foam Cascara Nitro 200 mg 270 mg
Dark Mocha Nitro w/milk 225 mg 295 mg
Cold Foam Dark Cocoa Nitro 215 mg 290 mg
Torched Vanilla Nitro 210 mg 280 mg
Nitro Latte 115 mg 155 mg
Nitro Freddo 215 mg 285 mg
Nitro Cold Brew 215 mg 280 mg
Nitro Cold Brew w/sweet cream 230 mg 325 mg
Molten Chocolate Frappuccino 80 mg 110 mg 150 mg
Vanilla Frappuccino 65 mg 95 mg 125 mg
Caramel Flan Frapp 65 mg 90 mg 125 mg
Caramel Frappuccino 70 mg 100 mg 130 mg
Caramel Ribbon Crunch
(Creme: caffeine-free)
60 mg 85 mg 115 mg
Cinnamon Dolce
(Creme: caffeine-free)
65 mg 90 mg 125 mg
Coffee Frappuccino 70 mg 95 mg 130 mg
Double Chocolaty Chip 10 mg 15 mg 15 mg
Espresso Frappuccino
(coffee and espresso)
130 mg 165 mg 185 mg
Hazelnut Frappuccino 65 mg 90 mg 125 mg
Java Chip 75 mg 110 mg 145 mg
Mocha Cookie Crumble 75 mg 105 mg 140 mg
Mocha Frappuccino 75 mg 110 mg 140 mg
Green Tea Creme 50 mg 70 mg 95 mg
Strawberries & Creme 0 mg 0 mg 0 mg
Vanilla Bean Creme 0 mg 0 mg 0 mg
White Chocolate Creme 0 mg 0 mg 0 mg
White Chocolate Mocha 70 mg 90 mg 125 mg
Iced Latte (and flavors) 75 mg 150 mg 225 mg
Iced Blonde Latte 85 mg 170 mg 255 mg
Iced Pumpkin Spice Latte 75 mg 150 mg 225 mg
Iced Mocha (and flavors) 95 mg 175 mg 260 mg
Iced White Chocolate Mocha 75 mg 150 mg 225 mg
Iced Caramel Macchiato 75 mg 150 mg 225 mg
Iced Americano 150 mg 225 mg 300 mg
Iced Blonde Americano 170 mg 255 mg 340 mg
Iced Cappuccino 75 mg 150 mg 225 mg
Iced Blonde Cappuccino 85 mg 170 mg 255 mg
Doubleshot on Ice 150 mg 225 mg 375 mg
Iced Flat White 90 mg 130 mg 175 mg
Iced Coffee 120 mg 165 mg 235 mg 285 mg
Iced Coffee with Milk 90 mg 125 mg 170 mg 190 mg
Iced Clover Reserve 280 mg 380 mg 470 mg
Iced Clover Blonde 255 mg 340 mg 425 mg
Iced Clover Medium 280 mg 375 mg 445 mg
Iced Clover Dark 280 mg 380 mg 470 mg
Iced Classic Chai Latte 70 mg 95 mg 145 mg
Iced Teavana Green Tea Latte 55 mg 80 mg 110 mg
Teavana Iced Green Tea
(and Lemonade)
30-35 mg 40-45 mg 60-65 mg 85-90 mg
Teavana Iced Peach Green Tea 30-35 mg 40-45 mg 60-65 mg 85-90 mg
Teavana Black Iced Tea
(and Lemonade)
30-35 mg 40-45 mg 65-70 mg 85-90 mg
Teavana Green Iced Tea
(and Lemonade)
30-35 mg 40-45 mg 60-65 mg 85-90 mg
Teavana Iced Passion
(and Lemonade)
0 mg 0 mg 0 mg 0 mg
Oprah Iced Chai Latte 40 mg 50 mg 75 mg
Chocolate Smoothie 15 mg
Chocolate Milk 20 mg 25 mg 40 mg
Shaken Sweet Tea
(also Lemonade)
15-20 mg 20-25 mg 35-40 mg 45-50 mg
Iced Refreshers (all flavors) 35-45 mg 45-55 mg 70-85 mg 90-110 mg
Pink Drink 35 mg 45 mg 70 mg 90 mg

BeverageTall (254ml)Grande (473ml)Venti (591ml)
Caffe Espresso Frappuccino 87 mg 121 mg 149 mg
Caffe Espresso Light Frapp. 87 mg 110 mg 137 mg
Vanilla Cream Frappuccino 0 mg 0 mg 0 mg
Caramel Frappuccino 42 mg 64 mg 91 mg
Caramel Frappuccino (light) 42 mg 54 mg 80 mg
Mocha Frappuccino 45 mg 66 mg 91 mg
Mocha Frappuccino(light) 45 mg 57 mg 88 mg
Java Chip Frappuccino 46 mg 68 mg 96 mg
Strawberries & Creme Frappuccino 0 mg 0 mg 0 mg
Coffee Frappuccino 42 mg 65 mg 92 mg
Coffee Frappuccino (light) 42 mg 59 mg 87 mg
White Chocolate Mocha Frapp. 42 mg 62 mg 86 mg
Triple Caramel Frappuccino 78 mg 117 mg 156 mg
Mocha Cookie Crumble Frappuccino 86 mg 129 mg 171 mg
Chocolate Cream Frappuccino 2 mg 3 mg 3 mg
Macha Tea Frappuccino 57 mg 83 mg
Iced Latte (and flavors) 150 mg 150 mg 225 mg
Iced Cappuccino 150 mg 150 mg 225 mg
Iced Mocha (and flavors) 170 mg 175 mg 255 mg
Iced Caramel Macchiato 150 mg 150 mg 225 mg
Iced Americano 150 mg 225 mg 300 mg
Iced Coffee 180 mg 260 mg 330 mg
Iced Chai Tea Latte 69 mg 92 mg 115 mg
Iced Matcha Tea Latte 60 mg 90 mg 120 mg
Iced Cold Brew 148 mg 207 mg 266 mg
Cold Brew Latte 139 mg 186 mg 276 mg
Nitro Cold Brew 166 mg
(10 oz)
244 mg
(Tall)
Niro Cold Brew Sweet Cream 139 mg 186 mg 276 mg
Nitro Cold Brew w/cold foam 140 mg
(10 oz)
164 mg
(Tall)
Nitro Cold Brew w/caramel cold foam 165 mg
(10 oz)
195 mg
(Tall)
Iced Teas (all flavors) 20-25 mg 25-30 mg 35-40 mg

Starbucks has a large selection of bottled and canned iced coffee drinks. Caffeine amounts vary.

Caffeine in Starbucks Via, Bottled, and Canned Drinks

BeverageSizeCaffeine
Starbucks Bottled Iced Coffee (see all flavors) 12 fl oz 120 mg-220 mg
Starbucks Bottled Frappuccino 13.7 fl oz 130 mg
(Flavors range from 45 mg-130 mg)
Starbucks Bottled Cold Brew (black sweetened) 11 fl oz 215 mg
Starbucks Bottled Cold Brew (black unsweetened) 11 fl oz 175 mg
Starbucks Bottled Cold Brew (vanilla & fig) 11 fl oz 185 mg
Starbucks Bottled Cold Brew (cocoa & honey) 11 fl oz 185 mg
Starbucks Cold & Crafted (black sweetened) 11 fl oz 135 mg
Starbucks Cold & Crafted (vanilla & milk) 11 fl oz 125 mg
Starbucks Cold & Crafted (mocha & milk) 11 fl oz 125 mg
Starbucks Canned Nitro Cold Brew 11 fl oz 235 mg
Bottled Iced Espresso Classics (all flavors) 12 fl oz 125 mg
Starbucks Canned Doubleshot Espresso & Cream 6.5 fl oz 120 mg
Starbucks Canned Doubleshot Espresso Americano 6.5 fl oz 110 mg
Starbucks Canned Doubleshot Salted Caramel 6.5 fl oz 70 mg
Starbucks Canned Doubleshot Espresso Light 6.5 fl oz 120 mg
Starbucks Canned Doubleshot Cubano 6.5 fl oz 85 mg
Starbucks Triple Shot Energy (all flavors) 15 fl oz 225 mg
Starbucks Canned Doubleshot Energy Coffee 15 fl oz 135 mg
Starbucks Canned Doubleshot Energy Hazelnut 15 fl oz 135 mg
Starbucks Canned Doubleshot Energy Mocha 15 fl oz 135 mg
Starbucks Canned Doubleshot Energy Vanilla 15 fl oz 135 mg
Starbucks Canned Doubleshot Energy White Chocolate 15 fl oz 135 mg
Doubleshot Coffee + Protein (Coffee) 8 fl oz 110 mg
Doubleshot Coffee + Protein (Vanilla) 8 fl oz 110 mg
Doubleshot Coffee + Protein (Chocolate) 8 fl oz 110 mg
Starbucks Via Instant Coffee 1 sachet 130-140 mg
Starbucks Iced Via 1 sachet 260-280 mg
Canned Refreshers (all flavors) 12 fl oz 50 mg
Via Refreshers 1 sachet 40-55 mg
Starbucks Classics-Caramel Macchiato (and Skinny) 8 fl oz 85 mg
(510 mg/48 fl oz. bottle)
Starbucks Classics-Caffe Mocha 8 fl oz 85 mg
(510 mg/48 fl oz. bottle)
Starbucks Classics Vanilla Latte (and Skinny) 8 fl oz 85 mg
(510 mg/48 fl oz bottle)
Tazo Black Tea w/lemon 13.8 fl oz 30-45 mg
Tazo Black Tea Mango 13.8 fl oz 15-30 mg
Tazo Berry Blossom White 13.8 fl oz 30-45 mg
Tazo Giant Peach 13.8 fl oz 30-45 mg
Tazo Organic Black Tea 13.8 fl oz 30-45 mg
Tazo Organic Green Tea 13.8 fl oz 30-45 mg
Tazo Plum Pomegranate 13.8 fl oz 15-30 mg
Tazo Tazoberry 13.8 fl oz 30-45 mg
Tazo White Cranberry 13.8 fl oz 30-45 mg

* Canned and bottled Starbucks’ drinks are produced and distributed by PepsiCo.

Please visit our complete caffeine database for all other beverages.

Tazo Tea Caffeine

In 2017 Starbucks phased out Tazo tea, and replaced with the Teavana brand.

For reference purposes the caffeine amounts of Tazo Tea are still listed below.

See more about caffeine in black tea here.

BeverageShort (8 fl oz)Tall (12 fl oz)Grande (16 fl oz)Venti (20 fl oz)
Tazo Black Tea Latte 50 mg 75 mg 100 mg 125 mg
Tazo Chai Tea Latte 50 mg 75 mg 100 mg 120 mg
Tazo Green Tea Latte 30 mg 55 mg 80 mg 110 mg
Chocolate Chai Tea Latte 10 mg 10 mg 20 mg 25 mg
Tazo Awake Brewed Tea 70 mg 70 mg 70 mg 140 mg
Tazo Calm Brewed Tea 0 mg 0 mg 0 mg 0 mg
Vanilla Rooibos Tea Latte 0 mg 0 mg 0 mg 0 mg
Full Leaf Chai Tea 40 mg 40 mg 40 mg 40 mg
Awake Tea Latte 70 mg 70 mg 70 mg 140 mg
Passion Brewed Tea 0 mg 0 mg 0 mg 0 mg
Zen Brewed Tea 30 mg 30 mg 30 mg 65 mg
Refresh Brewed Tea 0 mg 0 mg 0 mg 0 mg
Earl Grey Latte 65 mg 65 mg 65 mg 130 mg
Tazo China Green Tips Tea 45 mg 45 mg 45 mg 85 mg
Tazo Earl Grey Brewed Tea 65 mg 65 mg 65 mg 130 mg
Iced Chocolate Chai Latte 10 mg 10 mg 20 mg
Iced Green Tea Latte 50 mg 80 mg 110 mg
Iced Chai Latte 70 mg 95 mg 145 mg
Iced Awake Tea Latte 50 mg 50 mg 100 mg
Tazo Chai Frapp 20 mg 40 mg 45 mg
Tazo Green Tea Frapp 50 mg 70 mg 100 mg

How Accurate Are These Amounts?

Starbucks makes it clear that “caffeine information is approximate and is based on limited analytical data.” and also that “Values can vary greatly based on the variety of the coffee and the brewing equipment used.”

They publish caffeine amounts in their online menu and also the app.

Here are a few independent tests that showed some discrepancies from what Starbucks lists.

In 2017 BuzzFeed found Starbucks Brewed Coffee to average about 17 mg/ounce or 272 mg per 16 fluid ounces (Grande). This is about 60 mg less than what Starbucks reports.

However this was just a single test.

Beware: Decaffeinated Drinks Still Contain Caffeine

Decaffeinated isn’t the same thing as caffeine-free.

A 2006 lab test of Starbucks coffee showed the following:

  • Decaf Brewed Coffee – 12.0–13.4 mg/16 fl oz serving (Starbucks have decided to list considerably more caffeine than this – 25 mg per 16 fl oz).
  • Decaf Espresso – 3.0–15.8 mg/shot.

References

  • McCusker R.R.; Goldberger B.A.; Cone E.J., Caffeine Content of Specialty Coffees, Journal of Analytical Toxicology, Vol. 27, October 2003, pp 520-522. study link
  • McCusker R.R.; Goldberger B.A.; Cone E.J., Caffeine Content of Decaffeinated Coffee, Journal of Analytical Toxicology, Vol. 30, October 2006, pp 611-613. Study link
  • Chin, J. M., Merves, M. L., Goldberger, B. A., Sampson-Cone, A., & Cone, E. J. (2008). Caffeine content of brewed teas. Journal of analytical toxicology, 32(8), 702-704. Study link
  • Starbucks Nutrition.
  • http://globalassets.starbucks.com/assets/1b6d5e3b95bb4090ad1685d4512cc729.pdf
  • Starbucks App

Related

Written by James Foster, last updated on June 1, 2022

How much caffeine is in a Starbucks espresso drink?

As a general rule, the caffeine in Starbucks' espresso-based drinks goes like this: Short and Tall sizes have 75 mg, while Grande and Venti drinks have 150 mg. This is because there's one espresso shot in the smaller sizes and two in the larger.

How much caffeine is in 2 shots of espresso at Starbucks?

If you're buying coffee at a Starbucks, the basic version of a double shot is two shots of espresso. Whether you order this in a latte or plain, your double shot of espresso will have 150 milligrams of caffeine — putting it above either canned version.

How strong is Starbucks espresso?

Each shot of Starbucks signature espresso contains 75 mg of caffeine and each shot of blonde espresso is about 85 mg. What is this? A quick rule of thumb: Most short and tall espresso drinks have 75 mg of caffeine and grande and venti have 150 mg.

Which Starbucks espresso has the most caffeine?

The strongest drink at Starbucks is a Venti True North Blonde Roast filter coffee, which contains 475mg of caffeine. The strongest espresso based drink is an Iced Shaken Espresso (formerly “Starbucks Doubleshot on Ice”) which clocks in at 375mg. This is also the strongest cold drink as well.