Circulating insulation, evenly heated Note: The product is a thermos bottle without heating function, so you need to put the milk of suitable temperature into the thermos bottle to keep it warm, and it cannot heat the low temperature milk. 1. Prepare water at about 40 degrees and put it in the bottle 2. Wrap the bottle 3. Stick it on 4. Connect the power supply to keep warm, and then pour the milk powder when the baby wants to drink milk