If your milk is just squeezed out, it can definitely be drunk directly for your baby, or it is warm. If you leave it for a while, it will definitely need to be heated. It’s ok if you don’t put the refrigerator to heat it. If you put it in the refrigerator, you need it You can drink it only when the bottle warmer is heated!
Mothers should never let the caregiver use the microwave to heat the formula milk. Because the uneven heating of the microwave oven will produce hot spots, it may scald the baby's mouth.
If the baby does not drink the formula milk in the bottle at one time, tell the caregiver not to give him the leftover milk for the next meal. Because the drunk formula may deteriorate in about 2 hours at room temperature, which can easily cause diarrhea in babies.