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HOW MUCH CAFFEINE IS IN BLACK TEA

Among the different kinds of tea (white tea, green tea, oolong tea), black tea has the highest caffeine. Do you know how much caffeine is in black tea? Read on, and I’ll tell you.

Caffeine is a naturally occurring stimulant that is found in some beverages. It gives you physical and mental alertness. It also acts as a diuretic; it increases urine production and helps flush out bodily fluids.

Caffeine in black tea

Black tea comes from the tea plant camellia Sinensis, which is also the source of white, green, yellow, and oolong teas. Unlike white and green tea, black tea undergoes a fermentation process, making its tea leaves more oxidized. It is also the reason why black tea has fewer antioxidants than white and green tea but has more caffeine than them. In fact, black tea has the highest caffeine content among the other kinds of tea. You will often find black tea mixed with other flavors, such as our Strawberry Surprise and Fuzzy Peach Black Tea options, as they have all that caffeine with the addition of some tasty fruit flavors to your black tea.

Candied Apple black tea
loose leaf black tea

How much caffeine is in tea?

The caffeine content in tea is affected by many factors. Among them are the temperature of the water in brewing, the time of brewing, the tea leaves used, and the amount of water in every brewing. The longer you brew the tea, the higher the caffeine content will be. Usually, black tea is brewed for up to 3 minutes. More caffeine will be released if you brew it longer. Loose-leaf teas usually provide less caffeine than those in crushed tea leaves. However, most teabags are usually made of crushed leaves so it contains more caffeine than those tea sold by loose leaves.


Generically prepared and brewed, black tea has about 85 mg of caffeine in every 8 fluid ounces of water. The recommended daily intake of caffeine is about 200 mg. Therefore, you can take up to 5 cups of black tea daily.

How much caffeine should an adult have in a day?


For most adults, caffeine has been a part of our everyday diet. It is good to know that black tea is known not only for its health benefits but also of its caffeine content which improves our alertness and functioning. If you are on the other side of the fence and are looking for a black tea that does not have caffeine, then don’t worry, as these teas are all Caffeine Free teas and can give you all the full flavor you expect from your teas without the caffeine-induced side effects.

At the end of the day, it is really your choice as to what you are looking for, but you don’t have to worry, as The TeaCupay has many different types of tea for everyone!