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Millions of people wake up daily with their first thought being a nice comforting cup of coffee. Let’s face it coffee smells and tastes amazing, increases alertness and helps us focus. What is not to like?! Coffee also offers plenty of health benefits! Though there is one particularly important thing we do need to discuss, and that is the stimulant that is in Coffee, Caffeine. Caffeine is what gives us that boost that we all need in the morning. According to health professionals, the recommended amount of caffeine an individual should intake in a day is about 300-400 milligrams. How much caffeine in coffee, you ask? In this guide, I will be going over the amounts of caffeine in coffee and all the other various factors in relation. 

So, How Much Caffeine In Coffee?

You can expect around 95 milligrams of caffeine in an 8 oz cup of coffee, and around 6 milligrams of caffeine in a roasted coffee bean. Mind you, this depends on many factors like the types of coffee bean, type of coffee roast, type of coffee drink and serving size. 

Let’s take a look at the factors involved: 

The Type of Coffee Beans

There are four types of coffee beans: Arabica, Robusta, Liberica and Excelsa. The most commonly coffee beans being Arabica and Robusta. Arabica coffee beans are the most popular and are considered to be of higher quality compared to the other coffee beans.  

Types of Coffee Beans

Arabica Coffee beans contain 6 milligrams of caffeine per roasted coffee bean, and 1.2-1.5g per 100 grams, with 340-430mg of caffeine per ounce. 

Robusta Coffee beans contain 10 milligrams of caffeine per roasted coffee bean, and 2.2-2.7g per 100 grams, with 630-770mg of caffeine per ounce. 

Robusta beans pack more caffeine than Arabica beans but are of lesser quality. Arabica beans tend to have less of a bitter taste to them with a lot more refined flavours. Robusta beans are usually used for instant coffee and as fillers for inexpensive coffee blends. 

For more information on the four types of coffee beans check our article here! 

The Type of Coffee Roast

Many speculate that longer roasting times will result in the coffee beans having less caffeine. While this is a debatable topic, If you measure out the beans by weight then you will notice that the light and dark roast beans almost contain the same amount of caffeine content. Since the lightly roasted beans are much denser than darker roasts they will pack a bit more caffeine. (1)

Coffee Roasting

To learn more about the types of coffee roasts, check out our guide here! 

Types of Coffee Drinks

Types of Coffee Drinks

Brewed Coffee

The most common type of coffee drink in the United States and Europe is brewed coffee. Simply made by pouring hot water over ground coffee using a filtration system. 

An 8 Oz cup of brewed coffee contains an average of 95-200 milligrams of caffeine.

Espresso Coffee

This coffee is made by forcing pressurized steam through a tightly packed puck of finely ground coffee. Espresso packs more caffeine per volume than the average regular brew coffee. The average espresso shot is about 30 to 50 ml (1 to 1.75 oz) and contains approximately 63 mg of caffeine and approximately 125 mg of caffeine for a double shot. (2)

Espresso Based Coffees 

Cappuccinos, Lattes and macchiatos are some of the popular espresso-based coffees. While these coffees are made with the addition of milk or a milk substitute, they don’t contain any caffeine. The caffeine would remain the same as the Espresso coffee. That’s 63 mg for a shot of espresso and approximately 125 mg for a double shot. 

Instant Coffee

Instant coffee is made up of dry large lumps or powder that has been made from freeze-dried/spray-dried brewed coffee. This type of coffee is extremely easy to prepare and is ready as soon as it’s dissolved in hot water. The caffeine in Instant coffee is less than regular coffee with each cup containing approximately 57-65 mg

Decaffeinated Coffee

While the name might be a tad deceiving, but decaffeinated coffee is not completely caffeine-free. The caffeine content in an 8oz cup of decaf is approximately 2-12 milligrams of caffeine, this can range depending on the type of coffee used and the method used to de-caffeinate. 

Commercial Coffee Outlets

Commercial Coffee Outlets

When it comes to buying coffee from a commercial coffee outlet, you’re gonna be getting a lot more coffee than the standard 8 oz cup. Coffee sizes range from small to extra large. Some of these cups sizes are comparable to drinking 3 regular cups of coffee. Let’s take a look at some of the sizes and caffeine doses in some of the most popular commercial coffee outlets around the world. 

McCafe (McDonald’s)

Coffee Type

Small | 12 Oz

Medium | 16 Oz

Large | 21-24 Oz

Brewed Coffee

109 mg

145 mg

180 mg

Decaf

8 mg

11 mg

14 mg

Espresso

71 mg (single)

142 mg (double)

-

Costa Coffee

Coffee Type

Small | Primo

Medio | Medium

Massimo | Large

Espresso

92 mg (single)

185 mg (double)

277 mg (triple)

Americano / Cappuccino

185 mg

277 mg

370 mg

Flat White

277mg

-

-

Latte

92 mg

185 mg

277 mg

Tim Hortons (Canada)

Coffee Type

Small | 286ml

Medium | 425ml

Large | 563ml

X-Large | 678ml

Brewed Coffee

140 mg

205 mg

270 mg

330 mg

Dark Roast Coffee

130 mg

195 mg

260 mg

315 mg

Decaf

6 mg

9 mg

12 mg

15 mg

Espresso

125 mg (single)

-

-

-

Tim Hortons (United States)

Coffee Type

Small | 286ml

Medium | 425ml

Large | 563ml

X-Large | 678ml

Brewed Coffee

140 mg

205 mg

270 mg

330 mg

Dark Roast Coffee

135 mg

200 mg

265 mg

320 mg

Decaf

6 mg

9 mg

12 mg

15 mg

Espresso

45 mg

-

-

-

Cappuccino

75 mg

100 mg

140 mg

-

Latte

35 mg

50 mg

75 mg

-

Dunkin’ Donuts

Coffee Type

Small | 10 Oz

Medium | 14 Oz

Large | 20 Oz

X-Large | 24 Oz

Brewed Coffee

150 mg

210 mg

300 mg

359 mg

Dark Roast Coffee

117 mg

164 mg

235 mg

282 mg

Decaf

7 mg

10 mg

15 mg

18 mg

Espresso

118 mg (single)

-

-

-

Americano

237 mg

284 mg

371 mg

-

Latte / Cappuccino

118 mg

166 mg

252 mg

-

Starbucks (Canada/United States)

Coffee Type

Short | 8 Oz

Tall | 12 Oz

Grande | 16 Oz

Venti | 20 Oz

Brewed Coffee | Pike Place

155 mg

235 mg

310 mg

410 mg

Brewed Coffee | Blonde

180 mg

270 mg

360 mg

475 mg

Brewed Coffee | Dark Roast

130 mg

195 mg

260 mg

340 mg

Decaf

15 mg

20 mg

25 mg

30 mg

Americano

75 mg

150 mg

225 mg

300 mg

Espresso

-

75 mg (single)

150 mg (double)

-

Cappuccino / Latte

75 mg

75 mg

150 mg

150 mg

Starbucks (UK/Europe)

Coffee Type

Short | 236ml

Tall | 254ml

Grande | 473ml

Venti | 591ml

Brewed Coffee

157 mg

229 mg

308 mg

387 mg

Decaf

15 mg

20 mg

25 mg

30 mg

Espresso

-

75 mg (single)

150 mg (double)

-

Americano

75 mg

150 mg

225 mg

300 mg

Cappuccino / Latte

75 mg

150 mg

150 mg

225 mg

For a more in-depth look into the caffeine contents of these commercial coffee outlets check out the folks at Caffeine Informer

Should I worry about how much caffeine I intake?

While coffee has many health benefits and is high in antioxidants, indulging in too many coffees can result in a caffeine overload which can result in restlessness, anxiety, heart palpitations and sleep disruptions.

The recommended amount of caffeine is around 300-400 milligrams a day, stretching it to 400-600 mg won’t usually cause any effects, but this all depends on the individual. Some people are more sensitive to caffeine than others, so to gauge the effect of caffeine on your system, you just need to experiment and see how caffeine affects your system.

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