COLD-RESERVING MATERIAL, METHOD OF COLD RESERVATION WITH COLD-RESERVING MATERIAL, AND COOLING CYCLE EMPLOYING COLD-RESERVING MATERIAL

摘要

A cold-reserving material for freezing foods which need refrigerating or freezing, such as perishable foods; and a method of refrigerating/freezing a food, etc. with the cold-reserving material. The cold-reserving material comprises water, a first electrolyte salt, and a second electrolyte salt, wherein the first electrolyte salt and the second electrolyte salt are dissolved so that the total amount of the salts is 12.5-35 wt.% per L of the water and that the ratio of the weight of the second electrolyte salt to that of the first electrolyte salt is 1:2-5.