At present, all chefs in Shanghai need to have the service qualification certificate of foreign cooking. The Qualification License for Foreign Cooking Service is a certification issued by the US Food and Drug Administration in Shanghai to rectify the foreign cooking service market, upgrade the food safety system and improve the catering service level of Shanghai International Center. From the hardware conditions to the software conditions of the cold chain factory, a very strict definition has been made. Juju Restaurant won the first prize with the highest standard software and hardware conditions in the domestic and foreign stewing industry, and won the first domestic stewing service qualification license, which became a landmark event for upgrading the stewing service quality in Shanghai and even China. So far, only two enterprises in China have this qualification.