Cafetto Milk Frother Cleaner is the choice of champions when it comes to removing milk residue from milk lines, frothers and parts on automatic espresso machines, and it sanitizes the system to boot. Cafetto MFC is proven to destroy traces of E-coli, Salmonella, Listeria and Enterococcus, is perfectly safe to use, and leaves no taste or odour. It's an essential for any machine, cafe or home. The commerical-sized 1L bottle uses a reservoir to ensure you use the right amount. To measure, ensure the white cap is well sealed and slightly loosen the orange cap. Squeeze the bottle until the reservoir measures 50ml, remove the orange cap and pour into a stainless steel jug filled with 500ml warm water. Steam the water with the MFC, and follow with 500ml clean water to rinse the components thoroughly.