The buildup of mineral scale is a threat to the performance and durability of coffee and espresso machines. Mineral scale buildup can impact your machine's boiler, preventing water from reaching its optimal brewing temperature. At insufficient temperatures, it is impossible to extract the full flavor from your coffee beans. Mineral scale buildup can also clog water flow, and if not removed, can cause a machine to stop working. Descaling powder removes the mineral scale buildup that forms on the heating element of all coffee equipment. Urnex® descaling powder is odorless and rinses away thoroughly, unlike vinegar which can be difficult to rinse, takes longer to be effective, and leaves behind an unpleasant odor and aftertaste that affects the aroma and taste of your coffee. Application: Coffee Machines; Espresso Machines; Dirt Types: Mineral Scale; Physical Form: Powder; Packing Type: Packet.