The present invention relates to a high-efficiency pasteurizing cooler, and more particularly, to a pasteurizing cooler for maintaining the quality of food during the preparation and distribution of the food, wherein the pasteurizing cooler pasteurizes the food while preventing the destruction of nutrients or vitamins contained in the food, avoids changes in the physical properties of the food being pasteurized, and reuses the energy being discharged to the atmosphere, thereby pasteurizing the food and preserving the pasteurized food in a cooled condition using less energy in an economically advantageous manner. The high-efficiency pasteurizing cooler of the present invention comprises: a preheating water tank for preheating a product a heating water tank for heating and sterilizing the product preheated in the preheating water tank a cooling water tank for cooling the product sterilized in the heating water tank and a heat pump which is connected to the cooling water tank and to the preheating water tank via a pipeline so as to cool and circulate the cooling water of the cooling water tank and to preheat and circulate the preheating water of the preheating water tank. According to the present invention, thermal energy absorbed in an evaporator, which might otherwise be discharged by a condenser, is prevented from being discharged to the atmosphere in the process of circulating warm water obtained after a cooling operation in the cooling water tank (20) performed by a refrigerating machine (40), and the thermal energy is reused in the pasteurizing process, to thereby remarkably improve the heating efficiency of the pasteurizing cooler, and attain the economical effects of saving energy and significantly reducing energy costs.La présente invention porte sur un refroidisseur de pasteurisation à haut rendement et, plus particulièrement, sur un refroidisseur de pasteurisation destiné à maintenir la qualité du produit alimentaire pendant la préparation et la distribution
