Descalers are specially designed for fully automatic coffee machines that contain a corrosion inhibitor. This inhibitor places its "protective hand" over all metal parts that come into contact with water. Cleaning is of course about hygiene. Special cleaners thoroughly remove coffee fats and oils from the coffee machine system. Even the proteins and fats in the milk system are eliminated by using these products. They are made with the right power to completely remove even the most stubborn deposits.The environmentally friendly alternative: Melitta® organic defoamer. ANTI CALC products come in powder or defatting liquid and you choose which product to use.