The main component of vinegar is acetic acid, but also contains a small amount of amino acids, organic acids, sugars, vitamin B1, vitamin B2 and so on. Vinegar has many functions, it can sterilize, disinfect and deodorize. When soaking pickled raw fish, if you add a small amount of vinegar can prevent corruption and deterioration. Vinegar has health care and therapeutic effects, can lower blood pressure, prevent arteriosclerosis and cure coronary heart disease. Steam with vinegar, fumigation of the room can also kill viruses and germs, to prevent colds and infectious diseases. In addition, when drunk, drink a little vinegar can also have the effect of sobriety.