Oolong is a semi-fermented tea that's made from large leaves to produce a full-bodied taste. After being picked, the leaves are withered to remove moisture. The leaves are then left to dry in the shade before the semi-fermentation process begins. Oolong is known for its floral aftertaste and soothing aroma. Oolong helps with digestion and lowers cholesterol. This tea also has weight loss benefits.