The use of 75% medical alcohol is recommended for the inactivation and disinfection of novel coronaviruses. If 75% alcohol is not used, alcohol stored at home, i.e., edible alcohol, should not be used as a disinfectant. The concentration of alcohol stored at home is generally rarely able to reach 75%. Usually its concentration is more than 30-40 degrees, and if it is to be used, it may not actually achieve the appropriate disinfection effect. It is recommended to use medical alcohol. It is also important to note that it needs to be purchased through regular channels and used within its shelf life. Content source: Dr. You Lai