Curd soup is called brine soup in the process, brine soup is prepared from wine and various spices. The wine in the brine soup can be selected from cooking wine, yellow wine, rice wine, sorghum wine, etc. The content is generally controlled at about 12%. The addition of wine can inhibit the growth of microorganisms, and at the same time can make curd with a unique flavor. There are many kinds of spices, such as pepper, pepper, star anise, cinnamon, ginger, chili and so on. Spices can modulate the flavor of curd and also have antiseptic and bactericidal properties. It is essential for making curd.