White wine has a certain sterilization and disinfection effect, but the effect is limited and cannot completely destroy bacteria, viruses and other pathogenic microorganisms. The sterilization and disinfection effect of liquor is not very effective, and it can only be used in emergency situations where there is no medical alcohol or other disinfectants available as a substitute. The higher the degree of white wine, the better. The main component of white wine is alcohol, which has the same composition as medical alcohol, but the concentration does not meet the requirements of medical alcohol. The chemical name of alcohol is ethanol, which has strong permeability, and the concentration of alcohol used for sterilization and disinfection in medicine is 75%, which is the result of repeated scientific evidence and clinical practice. 75% alcohol has the strongest bactericidal ability, because 75% alcohol is close to the osmotic pressure of bacteria, which can penetrate well into the bacteria to kill them, and the concentration of alcohol is too low to affect the bactericidal ability. And the general alcohol content of white wine is below 65%, especially some low alcohol content of white wine in about 30%, and can not reach the purpose of completely destroy the germs.