After six months, the throughput of our DeLonghi capsule machine was sparse. The use of this cleaning agent conveyed already during a single pass limescale from the machine, which settled like sand in the collecting vessel. Then the machine was working again as the first day. The product reaches about two years for four cleaning operations, in our case. In this respect us the risk was too great to risk damage or weaker cleaning effect on the machine with a Standardentkalker. Not for a few euros savings per year. The delivery of the shipment is incidentally very timely.