1. Vinegars mainly include rice vinegar, smoked vinegar, special vinegar, sweet and sour vinegar, wine vinegar and white vinegar. According to different varieties of producing areas, the amount of acetic acid contained in vinegar is also different, generally between 5% and 8%. The acidity strength of vinegar is mainly determined by the amount of acetic acid contained in it.

2. According to the classification of raw materials, vinegar includes: Shanxi mature vinegar, Zhenjiang aromatic vinegar, Sichuan bran vinegar, Henan specialty vinegar, Jiangsu and Zhejiang rose rice vinegar, Fujian Redmi vinegar, pineapple vinegar, apple vinegar, grape vinegar, malt vinegar and distilled white vinegar.

3. The main component of vinegar is acetic acid, and it is also rich in calcium, amino acids, succinic acid, grape acid, malic acid, lactic acid, B vitamins, salts and other nutrients beneficial to the body.