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A question we get asked a lot concerns how much caffeine there is in tea—especially relative to coffee. While all tea (Camellia sinensis) has caffeine, the amount you consume varies widely depending on growing conditions, how it’s processed and how it’s prepared for drinking. For example, with loose tea, finely-ground tea will deliver more caffeine than whole, unbroken leaves. Higher water temperature and longer steeping times also draw out more caffeine from the leaves—which is why black tea is typically the most caffeinated. Generally speaking, however, tea has less caffeine than coffee. Here’s a handy chart to help understand the...

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