It's All About Tea — caffeine

Does black tea have high caffeine? Not necessarily – and the common belief that green tea is always lower in caffeine isn't true either. Here's what actually determines caffeine levels in your cup. (Read more)

Can you decaffeinate tea at home? The short answer is no, and even commercial decaf tea still contains a small amount of caffeine. Here's what the home rinsing method actually does, how commercial decaffeination works, and what to do if you need to reduce your caffeine intake. (Read more)

Does tea have caffeine? Yes – all teas from Camellia sinensis do. But how much caffeine ends up in your cup depends on far more than tea type: cultivar, harvest season, shade-growing, brewing temperature, and steeping time all play a role. Here's how it works. (Read more)

Which tea is the best substitute for coffee? Whether you're cutting back on caffeine or looking for a smoother energy boost, here are the teas we recommend – from bold black teas to matcha and pu-erh.  (Read more)

Tea leaves actually contain more caffeine than coffee beans – yet a cup of tea almost always has less caffeine than a cup of coffee. Why? And what else makes the caffeine in tea feel different from the caffeine in coffee? (Read more)