Milk stains, fresh milk stains and aged milk stains on laundry
For the fresh milk stain, add a little salt powder, scrub it with cold water, and rinse it with clean water.
The aged milk stains can be washed with detergent first, and finally washed with light ammonia water to remove. But rinse it with clean water.
Stains on soft fabrics can be soaked in an equal amount of glycerin and hot water solution and gently scrubbed. When the stain melts, wash them with warm soapy water. Soak the stain in methanol solution for about two minutes and wash with soap.