When opening the milk pack and when handling with the milk hose you should mind an absolute cleanness. Unclean hands and tools can cause detrimental germs to get into the milk. Unopened UHT milk is usually free from detrimental germs.
Milk is a very sensitive food. We recommend using milk precooled in the refrigerator. After use put the milk back into the refrigerator. Do not continue to use milk which was standing without cooling for more than two hours.
Milk froth is made from the protein content in the milk. Some high protein content in the milk promotes the quality and stability of the milk froth.