As a longtime user coffee machines (fully automatic) to get to clean froth nozzle and especially not hoses around. Otherwise the foaming does not really work. As well not enthusiastic chemistry users on machines that process food, to me, a mechanical cleaning is important. And that goes great with it. Even the smallest holes can be kept nice and clean with regular use. And if it still does not want to fold, does a (carefully applied) rolls Adel rest. So many, in accordance of baked-milk remains clogged Milchschaumdüse works later like new!