Coffee Machine Descaling Cleaning Tablets, Dirt And Oil Stains Clean Keep Kitchen Equipment Sanitary Effervescent TabletsOur coffee machine descaling tablets contain sodium bicarbonate, citric acid and sodium dodecyl sulfate. It can deeply clean the inside of the coffee machine, effectively remove grease and coffee stains. Its use is simple: clean the filter basket and filter before use and place the product on it. Add some water, then turn on the coffee machine to clean. And it creates tiny bubbles that help break down dirt.