This rich green tea is a classic, this one is from Sri Lanka. It’s name originates from the leaves which were thought to look like gunpowder pellets. Caffeine Level: Medium. Country of Origin: Sri Lanka. Ingredients: Green tea. Steeping Suggestions: Use one teaspoon (3g) of tea per 6oz (180ml) cup of water. Steep at 82°C (180°F) for 1-2 minutes per steep.