The kitchen piers need to be sterilized with 75% alcohol, and the amount to be used depends on the size of the piers.

Alcohol can kill most of the pathogenic bacteria, 70% to 75% of the alcohol will make the pathogenic bacteria protein denaturation and inactivation death, so it is used for medical disinfection, other industries also use alcohol to sterilize items. For example, edible fungus industry and food industry, etc. The use of non-toxic and non-polluting, is a cheap and efficient disinfectant.