Beef and pork, in sides or quarters, were chilled and then frozen and stored for six months, in stores with diferent cooling
systems, diferent temperatures and in some cases a covering was used. Some meat was frozen without a previous chilling. The weight loss was determined and the results were statistically analysed by a multiple step-by-step regression. The meat was assessed by sensory analysis. The storage of meat in air-cooled stores resulted in greater weight loss than those resulting from pipe-cooled stores. If the meat is packed, then the former type of store is preferred. Temperature of storage has a highly signi®cant efect upon the weight loss and packing is the most signi®cant variable, being more important in the case of beef. Qualitative changes occurring during frozen storage are not organoleptically detected.