The Baby Brezza Bottle and Breastmilk Warmer is the safest way to warm breastmilk and formula. The Baby Brezza Bottle & Breastmilk Warmer is the only baby bottle warmer with 2 settings that safely warm both breastmilk and formula. Other traditional warmers typically use steam to warm baby bottles which will destroy the proteins in breastmilk by heating it too fast. To combat this issue the Baby Brezza Bottle & Breastmilk Warmer features a unique warm water bath setting that safely warms breastmilk to protect its nutrients, as well as a steam heat option to rapidly warm formula. EASY TO USE Just pick your preferred setting and let the warmer do the rest including shutting off automatically when done. UNIVERSAL FIT Fits all brands and types of bottles, milk storage bags, and baby food jars. TAKING OUT THE GUESSWORK Includes measuring cup to easily fill up with water; Attaches to the back so you never lose it. Safely and evenly warms breast milk, formula, and baby food jars within minutes The only warmer that features 2 settings to ensure bottles are safely heated to the right temperature Steady Warm function uses a warm water bath to safely warm or defrost breastmilk which preserves its nutrients (unlike other traditional warmers) Quick Warm function uses safe, steam heat to rapidly warm formula and baby food Universal fit warming basket accommodates most bottle brands and types, most storage bags and plastic/glass food jars Auto-shut-off safety feature prevents overheating Includes measuring cup to help you easily fill up then warming basket, which can attach to the back of the machine when not is use.