Tea is one of the world’s most beloved beverages, not least because of its natural caffeine content. But how do caffeine levels differ across tea types? And how do scientists measure caffeine in your cup?
Here’s an approximate caffeine ranking for popular teas per 240ml (8 oz) serving:
Black Tea: 40-70 mg, robust caffeine punch
Pu-erh Tea: 30-70 mg, depending on...
