Using a bottle warmer is safer. It's faster than other methods: Running hot water over the bottle or warming it in boiling water takes a lot more time (and effort if you're holding the bottle under hot water) than using a warmer. Preserves nutrients. You should never heat up breastmilk in the microwave.

Is a bottle warmer necessary?

If you are using bottles to feed your baby you may want to warm them. There's no reason why you need to; many babies happily take room-temperature or even cold formula, expressed breast milk (EBM), and water. But if warm the milk you must, there's no need to buy an electric bottle warmer.

What is the point of a bottle warmer?

A bottle warmer is a safe and effective gadget that quickly warms bottles of either breast milk or formula. The majority of bottle warmers run on electricity and need to be plugged in, but there are a few battery-powered options currently on the market.