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Coffee Tips

How Much Caffeine is in a Coffee Bean?

Brief Answer

Roasted coffee beans and brewed coffee contain different amounts of caffeine. For example, a roasted coffee bean contains 6 milligrams of caffeine, while a cup of brewed coffee contains 95 milligrams, 16 times more.


Among the global beverages, none matches the irresistible allure of caffeine in coffee. The natural stimulant caffeine aids in mental alertness and improves physical performance. Caffeine, easily recognizable by its distinctive aroma, has several health benefits.

caffeine in a coffee bean

Nonetheless, health experts advise coffee lovers not to exceed the recommended daily caffeine intake. Although you may find your coffee drink irresistible, you should consume 300-400  mg of caffeine per day.

But do you know how much caffeine you consume in your favorite drink? For example, a cup of coffee contains approximately 95 mg of caffeine, whereas an espresso contains roughly 63 mg per shot.

Perhaps you are also interested in knowing how much caffeine a coffee bean contains? Single beans indeed contain less caffeine, but that amount can differ depending on the type of coffee.


How much caffeine does a coffee bean contain?

Different types of coffee will have different quantities of caffeine. Raw robusta coffee beans contain a high amount of caffeine, with 22 mg or 2.2% per gram. On a lower level, arabica coffee beans contain 12 mg or 1.2% per gram.

The arabica variety, however, is trendy owing to its superior quality over the robusta variety. You could easily believe that the Robusta coffee is worth taking when considering the quantity of caffeine in the bean.

Even though Robusta Coffee contains a high amount of caffeine, many do not like it due to its bitter taste. Despite this, it is used in cheap and instant coffee blends.

Coffee lovers favor Arabica coffee, renowned for its flavor and appeal, despite its low caffeine content.

Robusta coffee raw beans contain more caffeine than Arabica coffee raw beans. In the same vein, the amount of caffeine in a roasted bean differs, with Robusta coffee containing more caffeine. Robusta coffee beans contain approximately 10 mg of caffeine, while Arabica coffee beans contain about 6 mg.


Do Roasted Coffee Beans have the same caffeine levels?

The majority of people believe roasting coffee beans reduces caffeine levels. On the contrary, roasting coffee beans does not alter the caffeine level. If you take equal weights of the light and dark roasted beans and compare, they will have the same caffeine level.

Even so, you may notice slight variations when measuring by the scoop. A light roast coffee bean contains a little more caffeine due to the difference in mass and density – a light roast coffee bean has a higher mass and density.



As long as you consume 300-400mg of caffeine daily, you don’t need to worry about the caffeine level in your favorite coffee drink.

However, the caffeine content of Arabica and Robusta coffee beans differs, but roasted coffee beans have the same level. While an Arabica coffee bean has 6 mg of caffeine, a robusta bean contains 10 mg. An 8-ounce cup of brewed arabica coffee contains 95 mg of caffeine.

Enjoy the sweet scent of coffee while revitalizing your brain and body whenever you need some boost.


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