Coolness. Frozen-topped oolong tea is a kind of oolong tea. The fermentation degree of oolong tea is lower than that of black tea, and it is cool. In terms of taste, frozen top oolong tea tastes fresh and pleasant, with a certain sense of sweetness and fragrance. This taste is often consistent with the characteristics of cold drinks. Secondly, frozen top oolong tea is also rich in tea polyphenols, flavonoids, amino acids and other nutrients. These ingredients also have certain coolness properties, which can help cool off summer heat, clear away heat and detoxify. Therefore, frozen top oolong tea is considered as a cool drink.