During the research conducted, the effect was analyzed of fatteners’ sex and carcass weight & fatness on the weight loss during the post-slaughter chilling. It was found that the weight loss level during the carcass chilling was negatively correlated with the carcass weight of fatteners, and, in the case of the carcasses of hogs, also with their fatness. In the group of carcasses showing hot weights exceeding 80 kg, it was found a distinct tendency to lower weight loss during the chilling. No significant relationships were found between the sex of fattening pigs and the level of weight loss during the carcass chilling.