Discover aromatic, hand-picked full leaf oolong teas and blends including Lemon Ginger, Turmeric Orange, Rock Oolong, and Thailand Oolong. Oolong tea is a traditional Chinese tea created from the leaves of the Camellia sinensis plant, the same plant used to make black tea and green tea. The difference is in how Oolong tea is processed. Caffeine content: Moderate.