Breastmilk can be refrigerated in the following ways: 1. Wash your hands carefully, if you can’t do it with soap and running water, at least use a hand sanitizer that contains 60% or more alcohol and is free of soap.2. Clean the breast pump and make sure the entire unit is clean.3. Choose a storage bottle with a capacity size suitable for a single serving of the baby, and use glass bottles that are clean, dry and ready to be used.4. The bottles that are filled with breastmilk should be labeled to mark the time when the breastmilk is being pumped out. 5, frozen breastmilk should be placed inside the refrigerator as much as possible, do not put it by the refrigerator door, remind parents that frozen breastmilk can only be kept for three days.