The milk system cleaner from WoldoClean is a liquid cleaner that you add to the machine in the amount recommended by the manufacturer or you can clean the milk nozzle in a bowl. If you use the fully automatic coffee machine, especially the milk frother, we recommend daily cleaning with the WoldoClean milk system cleaner. Every time milk foam is prepared in the fully automatic coffee machine, milk residues and fats remain. In order to prevent contamination inside the machine, it is extremely important to clean the milk foam tube regularly and thoroughly. This is the only way you can enjoy hygienically pure and delicious milk foam from the fully automatic machine over the long term.