The Japanese call this elastic and sticky food made of glutinous rice flour or other starch "cake", which is pronounced in Japanese (もち/mochi) and transliterated as "Ma Shu" in Taiwan Province Province. It is also called grass cake in China. Sweet potato is a traditional food, which originated in Taiwan Province Province and Japan, and is very popular. It is usually called Tangyuan in Chinese mainland. With the development of quick-frozen food, it has gradually evolved into a kind of quick-frozen prepared food, realized industrialization, is being accepted by consumers, and has become popular in mainland China. Traditional potato is stuffed with glutinous rice flour after steaming, but the product has a short shelf life, is easy to harden, can not be stored, has a poor taste, can not be industrialized, and can not guarantee the product quality. In view of the above shortcomings in potato production, many companies have introduced a series of ready-mixed powder for food enterprises, which makes the present potatoes have long shelf life, softness and anti-aging, and made many varied products, such as Xue Meiniang and potatoes!