Wash your hands
Check the breast milk container for cracks or leaks
Thaw frozen milk in the refrigerator first if possible
Warm the milk by placing the container in a bowl of warm water
Swirl the container gently to mix the milk
Test the temperature on the inside of your wrist
Use the milk once it is lukewarm
Do not use a microwave
Do not boil the milk
Do not shake the milk vigorously
Discard any leftover milk after feeding if it has been warmed and used