Method 1: If there are stains, you can use a mixture of soap water, turpentine, and ammonia water in a ratio of 10:2:1 to wipe them off, and then rinse them off with clean water.
(Magic weapon: soapy water+turpentine oil+ammonia water)
Method 2: If there are stains left, they can be wiped with boiled milk to remove the stains. Stains on things can be washed away with lotus root juice.
(Magic weapons: milk, lotus root juice)
Method 3: If there are stains on the item, you can first soak it in alcohol, then gently wipe it with glycerin, and rinse it off with water after one hour. Beer stains must be washed away with warm water.
