Caffeine in Tea: How Much Is in Your Cup?
Tea has less caffeine than coffee, but the details matter.
A cup of black tea typically contains about 40 to 70 milligrams of caffeine, less than a similar cup of coffee.
What changes it
Green tea has somewhat less, and the amount varies with leaf, steep time and water temperature.
Alertness without jitters
Paired with L-theanine, tea gives alertness without the jitters. We explain the factors and offer tips for lower-caffeine cups.
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