[. . . ] Use in appliances with portafilter: Before cleaning, switch off the appliance and let it cool down to avoid any danger of burns. [. . . ] You can also use it for cleaning the inside of your thermos flasks or coffee pots. To ensure your appliance operates perfectly over time, clean it every two weeks or after every 250 cups of coffee. Use on espresso/coffee machines with cleaning program: Follow the operating instructions supplied by the manufacturer. Use on espresso/coffee machines with pre-ground coffee compartment: Place a cup under the coffee spout, put a tablet in the pre-ground coffee compartment and press the key corresponding to the pre-ground coffee. When half a cup of water has been discharged, turn the appliance off using the power switch for about 15 minutes and let the solution take effect. Before using the appliance again, prepare two cups of coffee, by selecting the key for the pre-ground coffee but without adding any coffee and then discard the dispensed water. To clean the drip tray, place a tablet inside and fill it up to 2/3rds full with hot water. Let the cleaning solution take effect for about 30 minutes, then rinse abundantly. [. . . ] Let the cleaning solution take effect for about 30 minutes and rinse abundantly. [. . . ]