How much caffeine in double espresso

Espresso has had a heyday, serving as the basis for all kinds of fancy coffee concoctions (including the ever-popular espresso martini), and of course, it's perfectly suited for sipping on its own whenever you could use a quick boost.

It is also well-suited to coffee makers with bean grinders.

But exactly how much caffeine is in that shot of espresso—and how many shots of espresso are in your coffeehouse favorites?

How much caffeine is in 3 shots of espresso

You may be surprised by how much punch that little espresso cup can pack.

What Is Espresso, Exactly?

Espresso is a highly concentrated one-ounce "shot" of coffee, produced by brewing finely ground coffee (the same types of beans you'd use for a standard cup) at a high pressure.

One of the signature elements of espresso is the "crema," the creamy layer that sits atop the espresso drink.

Newsflash: A Venti Starbucks Drink Doesn't Always Contain More Espresso Than a Grande

How Much Caffeine Is in Espresso?

An average one-ounce espresso shot has 63 milligrams of caffeine, according to the

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