Eccomum Double Baby Bottle Warmer Fast heat the breast milk by high-temperature steam. Defrost or heat 5 ounces of milk for 3 minutes, soothes the crying baby quickly. Evenly warm the breast milk or formula through water circulation or steam to preserve nutrition. Keep the warm water or breast milk warming in advance then start baby feeding whenever you need. The bottle warmer will power down automatically when the water inside of bottle warmer is dried. Double Bottle Design makes it possible to warm milk and water at the same time. It is made of food-grade pp material, stainless steel, and is BPA-free.