Puly Caff Group Head Cleaner quickly cleans group heads and removes tea and coffee stains from crockery and equipment. The unique, fast dissolving formula leaves no residue and means machines continue to produce great tasting coffee with no aftertaste or odour. Product features: Dose: 3.5g (group heads), 10g (filter holders). Total Doses: 257 (group heads), 90 (filter holders). NSF certified. Completely non-hazardous.