no war, I will put hot water, then warm water to adjust the temp, then before put the milk powder, will "pour out some water to test the temp" then add milk powder, then close the top nipple and shake well....the nurse in hospital teach me this.
But my son drank milk too slow. so I use milk warmer.
Somtimes temp is too hot, sometimes temp is still cold when using milk warmer. That's why i asked this.