how to heat expressed breast milk
How to Heat Breast Milk. It is completely safe to warm expressed breast milk or formula in a bottle. There are a few ways to do this. 1  Place the bottle in a bowl of warm water and seal it with a teat over the cap.2  Once the bottle is warmed to room temperature, shake to ensure an even temperature throughout.t is completely safe to warm expressed breast milk or formula in a bottle. There are a few ways to do this. 1  Place the bottle in a bowl of warm water and seal it with a teat over the cap.