How Much Caffeine Does Green Tea Have?
Caffeine is present in green tea in modest amounts and is known for its stimulative, energizing effect.
How Much Caffeine is in Green Tea?
The amount of caffeine in green tea depends on a few factors, including the variety of tea, the preparation method, and the amount of time steeped.
Typically, green tea contains between 25 and 29mg of caffeine per 8oz cup. This makes green tea a lower caffeine beverage compared to coffee, which typically contains about 12 to 16mg of caffeine per 8oz cup. Below is a comparison chart of caffeine found in various hot beverages:
- 1 cup of black tea: 40-60mg
- 1 cup of green tea: 25-29mg
- 1 cup of oolong tea: 12-55mg
- 1 cup of white tea: 9-30mg
- 1 cup of coffee: 12-16mg
When is Caffeine in Green Tea Highest?
The caffeine level in green tea can be affected by several factors, including the type of green tea, the age of the leaves and the steeping time.
The caffeine content can be highest in young, freshly harvest leaves, although some studies have shown that older leaves contain more caffeine due to more prolonged oxidation. In addition, the caffeine content of green tea can increase with a longer steeping time.
Green tea typically contains 25-29mg of caffeine per 8oz cup. The caffeine level can vary due to type of tea, the age of the leaves, and the brewing time. Green tea is often considered a lower-caffeine beverage compared to coffee, which contains 12 to 16mg per 8oz cup.