Vinegar is called acyl, also known as vinegar. There is a record in Zhou Li that "the person holding the acyl substance holds the acyl substance", which shows that there has been fermented vinegar in the Western Zhou Dynasty. Jinyang (now Taiyuan) is the birthplace of China vinegar. According to historical records, there was a vinegar workshop in Jinyang in the eighth century BC, which spread all over urban and rural areas in the Spring and Autumn Period. In the Northern Wei Dynasty, Qi Shu Yao Min described 22 ways to make vinegar. At that time, making vinegar and vinegar has become a major topic in Shanxi people's lives. There are many records about vinegar in ancient books such as Compendium of Materia Medica, and there are also many folk allusions about vinegar.