2. The practice of stewing soup: the stewing soup is heated by water, and the raw materials and water are put into the casserole (or stewing cup), covered and put into a large pot (the water in the pot is lower than that in the casserole, so it is advisable not to overflow into the casserole when the water is boiled). (If there are acidic raw materials in it, it needs to be deodorized in advance, and then various auxiliary materials and water are added). This waterproof stewing method can stabilize the heating of raw materials and soup, and the fresh and fragrant dishes are not easy to lose, and the soup is clear as water. The raw materials used in the stew are basically nutritious. Generally, it takes at least 4 hours to stew soup.
3, the practice of soup: the soup is directly heated, that is, the raw materials and water are put into the casserole and directly heated with fire, boiled over high fire, and simmered for about 3 hours. Although the method is simple and convenient, the effect of Cheng Lai is not as good as that of boiling water. Moreover, in the process of boiling, the soup is constantly evaporating, and water may need to be added according to the situation. But adding water in the middle will definitely affect the taste and soup color. So you'd better make sure to add enough water at a time.