How to clean the quilt cover of hotel sheets?

Blood stains, egg stains, sweat stains, milk stains, gravy, fruit juice, soup juice and grass juice contain protease washing powder, and rice flour, potatoes, cocoa, chocolate, soy sauce and infant food contain amylase washing powder. These two stains are the most important stains on hotels and sheets. Spray or clean the collar for pretreatment, then wash it with washing powder or laundry detergent, and if possible, wash it with hot water. The decontamination effect is better.