These cleaning tablets are intended for use with the Krups Espresseria XP7220 or XP7240 beans-to-cup machines. (can be used with other machines) These machines automatically prompt you when a cleaning cycle is needed and you simply drop one into the ground coffee chute when instructed by the machine. The tablet is dissolved during the cleaning process and removes the coffee residues that accumulate through normal daily use. Proper cleaning will prolong the life of your machine and give better tasting coffee. 10 Tablets Per Pack Great Value!