Raw materials, taking food waste as an example, pack food waste into hydrolyzer with screw conveyer, after hydrolyze 30min, separated from air with cover. The purpose for that temperature of material layer is expected to reach 130℃, for killing bacillus coli and breaking down conifin molecule chain, which makes digestibility reaching75% of the products. Keep on 45min when working pressure achieves to 0.25mpa, discharge water of steam in cylinder, break them up while cooling. It is suitable for packing leftovers of food wastes, waste on table and offal in kitchen which are able to be made into sterilizing products under high temperature.