There is no need to clean clam oil, also known as tile shell oil and shell oil. In the sixties and seventies of last century, it was the main baby for people to protect their skin and prevent freezing in winter. It is no exaggeration to say that it was a baby. At that time, the family was still using vanishing cream, and most ordinary families used clam oil to wash their faces in the morning and evening because of its low price.