Types of vinegar: Since vinegar has different flavors due to different brewing raw materials and process conditions, there is no unified classification method. According to the vinegar production process, it can be divided into brewing vinegar and synthetic vinegar. Brewing vinegar can be divided into grain vinegar (made with food and other raw materials), sweet and sour (made with raw materials such as caramel and sugar residue). Food vinegar can be divided into smoked vinegar, balsamic vinegar, and bran for different processing methods. Synthetic vinegar can be divided into color vinegar and white vinegar (can be divided into ordinary white vinegar and vinegar essence). Vinegar is preferred for brewing vinegar. Brewing vinegar varieties have different characteristics due to different choices of ingredients and methods. However, in general, pure sourness, rich aroma, and bright color are preferred.