A new steaming nozzle for decontamination of pork carcasses under industrial conditions was tested. The reduction of microbial counts induced by steaming and lactic acid was measured immediately after each treatment. In the next phase, the storage experiment was carried out and microbial growth evaluated during the cold storage of pork carcasses. The attention was focused on psychrophilic microorganisms, the growth of which is anticipated during the cold storage. The mesophile counts were also evaluated because of possible occasional breaks of the cold chain.