The First Years BabyPro SmartWarmer is ideal for heating breast milk or formula. It can also be used to defrost breast milk, formula or baby food. It can accommodate most types of baby bottles. The unit"s user-friendly control panel lets you choose the type of bottle, contents and temperature settings. You have to refill water only once every day. This smart baby food warmer can remember the previous cycle so, you don"t have to adjust the settings each time. It also notifies you with a light and a beep when the bottle is warmed and ready. This baby bottle warmer is BPA free and needs to be hand washed.