1, 19 14 years, Chairman Mao entered Hunan First Normal University to study. According to his classmates Zhou Shizhao and Jiang Zhuru, every Saturday, the school played a "food stall" to eat braised pork, which was stewed with Xiangtan soy sauce (soy sauce), rock sugar, cooking wine and star anise (star anise). The meat was "five flowers and three layers" with skin, with eight people at a table and four pounds of meat. From then on, Chairman Mao fell in love with braised pork.

In the early years, soy sauce could be put in the dishes that Chairman Mao ate. Later, once in the soy sauce workshop, I saw that the process of making soy sauce was unsanitary, and I never touched soy sauce again.

After entering Beijing, no soy sauce is allowed in all the dishes that Chairman Mao eats. Cheng Ruming, a chef from Zhongnanhai, came up with a solution, that is, adding salt to sugar instead of soy sauce to color and flavor the meat. The braised pork made in this way is salty and fresh, sweet and sweet. After Chairman Mao tasted it, it was very useful.