The leaves of this green tea are rolled into the shape of little pinhead pellets resembling gunpowder, hence its name. Gunpowder green tea tastes bold & lightly smoky, also lending to its name. Gunpowder tea leaves due to its compressed form. Gunpowder green is higher in caffeine than most other green teas (35-40 mg/8 oz serving) and is commonly used by athletes to improve endurance over periods of 3-6 hours. (Gluten-free & Sugar-free)