Because the water evaporates, the milk will turn into pastier and pastier until ultimately, it becomes a thick paste. Make sure the milk paste doesn’t turn brown though drying – that’s a sign the temperature is simply too high. I know he would not come back. That's just his personality. https://travisceesb.pages10.com/the-fact-about-aptamil-pepti-2-that-no-one-is-suggesting-72180458