A machine dishwasher product comprising: a) 1 to 60% by weight of nonaqueous solvent(s), b) 0.1 to 70% by weight of copolymers of i) unsaturated carboxylic acids ii) monomers containing sulfonic acid groups iii) optionally further ionic or nonionogenic monomers c) 5 to 30% by weight of nonionic surfactant(s). Also, the machine dishwasher product, packaged in portions in a water-soluble enclosure.