Soundness of mind

Which tea has the most caffeine?

The tea with the highest caffeine content is probably matcha, which can contain up to 70 milligrams of caffeine per cup. Other teas that contain high amounts of caffeine include black tea, oolong tea, and pu-erh tea, which can contain up to 40 milligrams of caffeine per cup. Caffeine content can also vary depending on the brewing time, so it’s important to check the instructions of your tea before brewing.