Because China has a vast territory, vast territory and abundant resources, there are differences in climate, products, customs and habits, and for a long time, many flavors have been formed in the diet. China has always had the saying that "south rice is north", and its tastes are divided into "sweet in the south, salty in the north, sour in the east and spicy in the west", which are mainly Bashu, Qilu, Huaiyang, Guangdong and Fujian.