The characteristics of the black tea in the Sun Moon Lake in Yuchi Township are mostly sold in the form of Tea Bag. When brewing, if the soaking time is too long, the bitter taste is very heavy, and creamer and sugar must be added. Therefore, the impression of drinking black tea to the average person is to add sugar. To add milk cream, in fact, once the black tea is added, the aroma will be sharply reduced and the original taste of black tea will be lost.