Why Choose 70%~75% Alcohol?

Alcohol with a concentration higher than 75% will form a protective film on the surface of the bacteria, preventing it from entering the bacteria body, and it is difficult to completely kill the bacteria. If the bacterial concentration is lower than 70%, it can enter the bacteria, but it cannot coagulate the protein in the body, nor can it completely kill the bacteria. Therefore, only 70% to 75% alcohol has a strong penetrating power at the same time. It can pass through the membrane on the surface of the bacteria, enter the inside of the bacteria, and coagulate the protein that constitutes the basis of bacterial life, and then kill it.