It is very important to regularly descale your coffee/espresso machine in order to eliminate the presence of limescale/other hard water mineral deposits and prevent corrosion. Doing so significantly extends your machine's lifespan and enhances taste;Custom-formulated by a chemist with decades of experience, our descaler is compatible with all espresso/coffee makers, including Keurig 1.0 and 2.0, Nespresso, Hamilton Beach, Braun, Bunn, Mr. Coffee, Delonghi, Tassimo, Krups, Cuisinart, Saeco, Senseo and more;Powerful and effective yet gentle on the machine, our descaler is safe and will restore the performance of your machine. We meet or exceed the efficacy of other brands, including Durgol, De'Longhi, CleanCup, Urnex, Philips Saeco, Gaggia, and Keurig;Suitable for cleaning automatic machines, manual machines, pod/capsule/K cup machines, filter machines, commercial machines, cappucino machines, kettles and electric water heaters;Proudly made in the USA! Descale every 2-3 months for best results. TWO USES PER BOTTLE!