How much caffeine does 1 serving (1 g) contain?

An adult’s caffeine intake should not exceed 400 mg per day. One cup of matcha tea of 1 g contains 35 mg of caffeine, so we recommend not drinking more than 5 cups of matcha per day.

How much caffeine contains:
Matcha tea: 35 mg / glass
Green tea: 25-40 mg / glass
Coffee: 120-150 + / cup
Espresso: 70-90 mg / glass
Energy drink: 80 mg / can