The tempering system which is developed by this research which sees energy curtailment and from the environmental side which is essential for in hazard analysis critical control point. The tempering system with development experimented frozen pork and fish. As test result, frozen pork region was not thawed occurred plentifully. Like this the actual condition, the case of frozen fish is grind and the bulk and density uniformly was formed, the pork the density was dense and was thought with the fact that the temperature difference change is big. Also after tempering from measurement location center the temperature appeared substitutionally with the low-end thing. This central part of the frozene region is thought the impedance change appears few. To hereafter respects an impedance change is thought that has the necessity which will change the structure of tempering system.