We use these cleaners since we acquired our DeLonghi - it's perfect. And with this offer, for this fantastic prize simply unbeatable. Simply cleaner, start into the water compartment of the machine program, bowl under the water outflow - and almost finished. Once more fill with clean water and continue to run - the program ends, the cleaning procedure all by itself. The cleaner has no influence on the Kaffeegeschmasck - immediately after that you can enjoy your delicious coffee. BRILLIANT.