The milk container can be filled with milk and easily removable from the expresso machine to be refrigerated . I prefer using the steamer wand than trying to play with the knob  to adjust the settings for the concentration of the foam. I adjust the milk density froth  on the wand manually just  the way how I like it. If you on the run or having  guest and don’t have time or patience than kitchen aid’s automatic milk frother attachment is for you.