Coffee is loved worldwide for its rich flavor and energizing effect, but many people wonder: how much caffeine is in one coffee bean? The amount of caffeine depends on the bean variety, roast level, and size.
Arabica Beans: About 5–10 mg of caffeine per bean.
Robusta Beans: About 10–12 mg of caffeine per bean, nearly double that of Arabica.
So, on average, one coffee bean contains around 6–12 mg of caffeine depending on type.
A standard 8 oz (240 ml) cup of brewed coffee contains 80–120 mg of caffeine.
This equals roughly 10–15 coffee beans’ worth of caffeine (though you wouldn’t normally eat beans directly).
Bean Variety
Arabica = smoother taste, lower caffeine.
Robusta = stronger flavor, higher caffeine.
Roast Level
Light roast beans retain slightly more caffeine by weight.
Dark roast beans expand more and weigh less, so you need more beans per scoop—balancing out caffeine differences.
Bean Size and Density
Larger beans may contain slightly less caffeine per gram compared to smaller, denser beans.
Eating roasted coffee beans provides caffeine directly, along with antioxidants and fiber.
However, consuming too many beans may cause jitters, stomach upset, or sleep issues.
A safe amount is about 5–10 beans per serving for most people.
On average, one coffee bean contains 6–12 mg of caffeine, depending on whether it is Arabica or Robusta. This means it takes around 10–15 beans to equal the caffeine content of a standard brewed cup.
As a trusted China coffee bean supplier, we provide wholesale coffee beans with consistent size, variety, and roast quality—ensuring international buyers and distributors can deliver the perfect balance of flavor and caffeine to their customers.
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