The present invention relates to a granular cleaning and disinfecting composition generating a peroxy acid upon dissolution in water comprising: (1) 15 - 60 wt% of a percarbonate, (2) 8 - 35 wt% of an acylating agent, (3) 0.5 - 5 wt% a nonionic surfactant, (4) 0.1 - 3 wt% of a phosphonate as a foam inhibitor, having a bulk density between 0.5 and 1.4 kg/L as well as a method for cleaning or disinfecting with a low- foaming peroxy acid containing use solution obtained upon dissolution of the granular composition in water.
