caffeine in tea

The Slow Release of Tea Caffeine:

The caffeine content in tea is released in the body at about half the rate of coffee!  The absence of a ‘strong jolt’ means that tea is less taxing on the nervous system. The caffeine in tea produces a gradual increase in alertness over a few hours, as opposed to the ‘crash’ that often occurs after coffee consumption.

The following chart shows the approximate caffeine content of coffee, cola, and a variety of teas:
Coffee 100 mg
Cola 45 mg
Black tea 40 mg
Oolong tea 30 mg
Green tea 20 mg
White tea 15 mg
Herbals/Tisanes 0 mg

Caffeine levels vary according to brewing strength.

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