How Much Caffeine is in a Coffee Bean?

Coffee beans on a spoon.

Caffeine content in coffee is a fluctuating variable. Coffee is an agricultural product and the coffee bean we know and love is the seed of the coffee plant. Coffee beans are grown inside of the coffee cherry which is the fruit of the coffee plant. All aspects of the coffee plant contain caffeine. This includes the bark, the leaves, the cherry, and the seed.

How Much Caffeine is in a Whole Bean?

On average, a whole bean of commercial arabica coffee contains between 5 to 10 mg of caffeine. It is important to note that there are many types of coffee plants. Because of these different varieties of plants, there are many varieties of coffee beans. Each of these beans are likely to have varying caffeine content. Caffeine content is also affected by the roasting process. The longer you roast a coffee bean, the less caffeine remains inside the whole bean. Therefore, light roast coffees, which are roasted less than dark roast coffee, contain more caffeine than a dark roast.

Coffee beans on the table.

Does Eating a Coffee Bean Give You Caffeine?

Yes! Eating a coffee bean will give you caffeine. Every part of the coffee plant contains caffeine. You can roast or dry the coffee leaves to make tea which will contain caffeine. Alternatively, the coffee bark or even the coffee cherries can be dried and brewed as tea, both with caffeine. The coffee cherry can also be eaten to give you caffeine. Eating a coffee bean requires roasting the coffee bean first. If the coffee bean is not roasted, the bean will be too hard for you to chew and consume.

How Much Caffeine is in 100g of Coffee Beans?

Again, the caffeine content is variable in coffee. On average, 100g of coffee beans will contain 500 to 1000 mg of caffeine.

 100g of coffee beans in bowls.

Which Coffee Bean Has the Most Caffeine?

Light roast coffee beans will have the most caffeine content on average. Dark roast coffees spend more time in the roasting process and are exposed to heat for longer. This means that the prolonged heat evaporates more of the moisture content. As the moisture content leaves, so does the caffeine. Light roast coffee beans are denser with caffeine because they spend less time in the roasting process.

However, when brewing coffee, the beans are measured by weight so you will end up with relatively the same amount of caffeine in each cup. The difference between a cup of light roast coffee and a cup of dark roast coffee is negligible when it comes to caffeine content. When choosing a coffee, it is always best to choose the coffee flavor you like the most and enjoy your cup regardless of caffeine content!

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