Tusu wine introduction: Tusu is a grass name. Some people say that Tusu is a kind of house in ancient times. Because the wine is brewed in this kind of house, it is called Tusu wine. It is said that Tusu wine was created by Hua Tuo, a famous doctor in the late Han Dynasty. Its formula is made by soaking traditional Chinese medicines such as rhubarb, atractylodes, cinnamon twigs, fang, pepper, aconite, and aconite into wine. Most people always start drinking from the oldest ones; but when drinking Tusu wine, it is just the opposite, starting from the youngest ones. That is to say, when the whole family gathers to drink Tusu wine, the younger ones start first, followed by the older ones, and each person drinks a little bit. The Song Dynasty writer Su Che's poem "Chu Ri" said: "I drink Tusu at the end of the year, and I am more than seventy years old before I know it." It is this custom.