Our coffee machine descaling tablets are carefully formulated with sodium dodecyl sulfate and citric acid. Designed specifically for deep cleaning of dirt inside coffee machines, removing carbon deposits, oil stains and coffee residues. The usage method is extremely convenient: Clean the filter basket and the filter before use, and then put the descaling sheet into the filter basket. Add an appropriate amount of clear water to the water tank, then start the coffee machine to complete a full cleaning cycle. After cleaning, refill with water and run 1-2 times to thoroughly rinse off any residues. It is recommended to use it every 2 to 4 weeks to keep the coffee machine's pipes clean and efficient. And it can effectively dissolve scale and sediment, helping to keep the internal pipes of the coffee machine unobstructed and clean.