The Baby Brezza Bottle + Breastmilk Warmer is the safest way to warm or defrost breastmilk, formula, or baby food. This revolutionary warmer is the only one with PerfectWarm™ precision warming technology, featuring 2 unique warming settings to safely warm or defrost breastmilk and formula. Steady Warm Mode uses a warm water bath to safely warm or defrost breastmilk to preserve its nutrients unlike other bottle warmers that only use steam heat which destroys breastmilk proteins. Quick Warm Mode uses steam heat to rapidly warm formula and baby food. Perfect for combo feeders. The Bottle + Breastmilk Warmer also warms more precisely than other warmers – just select your settings, then the warmer chooses the proper warming time, and shuts off automatically when finished. Fits virtually all types/sizes of bottles, milk storage bags and baby food jars. 1 year limited warranty (not valid if shipped outside the US).