According to relevant data, dry food accounts for the majority of the current pet market and is gradually expanding. For example, the market share of dry dog food in the UK is about 33%, 34%, 75% in Spain and the Netherlands, 50% in France and Italy, and about 76% in the United States. Our country does not have specific statistics, but judging from surveys in the pet market , about 80% of the products sold are Qianxing food. This is determined by the characteristics of Qianxing food that is easy to prepare, process and store. Among current dry foods, the vast majority are processed through puffing technology.