This unique Oolong tea was so delightful when we brought it in as a special feature tea that we have brought it back for good. The ‘milk’ flavour of this tea is fantastic and completely natural. Caffeine Level: Medium. Origin: China. Ingredients: Oolong Tea. Steeping Suggestions: Use one teaspoon (3g) of tea per 6oz cup of water. Steep at 80-90°C (190°F) for 2-4 minutes per infusion.