what has more caffeine green tea or black tea

what has more caffeine green tea or black tea

Green Tea vs Black Tea: Which Has More Caffeine?

When it comes to caffeine, it’s important to know the differences between green tea and black tea. Let’s take a closer look at which of these popular teas contains more caffeine and why.

Caffeine Content of Green Tea

Depending on brewing time and methods, green tea usually has between 25 and 70mg of caffeine per 8-oz cup. Generally, standard green teas will have less caffeine than matcha, because matcha is made from ground whole tea leaves.

Caffeine Content of Black Tea

Black tea usually has between 40 and 120mg of caffeine per 8-oz cup. The more you steep the more caffeine is released, so black tea can have higher amounts of caffeine when brewed longer than green tea.

Differences Between Green Tea and Black Tea

  • Taste: Green tea has a light and mild flavor, whereas black tea has a stronger, deeper flavor with hints of bitterness.
  • Processing: Green tea leaves are steamed to stop oxidation, whereas black tea leaves are fully oxidized, which gives the tea its dark color and bold flavor.
  • Nutrition: Green tea is high in antioxidants, whereas black tea is high in tannins.


In conclusion, it is clear that black tea has more caffeine than green tea. However, it is important to note that the amount of caffeine in either type of tea can vary greatly depending on brewing time and method.


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