Overview: Black tea, one of the most popular teas worldwide, is made from the oxidized leaves of the Camellia sinensis plant. It contains about half as much caffeine as a cup of brewed coffee. It also ...
Overview: Pu-erh tea is made from the rolled and dried leaves of the Camellia sinensis plant. It usually contains less caffeine than either black tea or coffee. It also contains other chemicals, such ...
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