Mildly detergent (powder) for the automated cleaning of laboratory glassware and other laboratory utensils. Especially suitable for automated cleaning of glassware for cell and tissue cultures, in the field of microbiology as well as and nuclear medicine and as well as isotope laboratories. Removes residues of culture media, residues of cell and tissue cultures, radioactive contamination, organic colour and pigment contamination. Easy to rinse off, free of surfactants.