PROBLEM TO BE SOLVED: To provide a sterilization method and a processing method of a food raw material.SOLUTION: A first process includes injecting slightly acidic electrolytic water into a container which contains weighed food raw material, rubbing and washing the food raw material well, and draining. A second process includes injecting the slightly acidic electrolytic water in the container again so that the slightly acidic electrolytic water is injected from the lowermost part of the layer of the food raw material deposited on the bottom of the container, and immersing the food raw material therein while overflowing. A third process includes exchanging the slightly acidic electrolytic water in the container and immersing the food raw material therein without overflowing.COPYRIGHT: (C)2013,JPO&INPIT【課題】食品原材料の殺菌方法および加工方法を提供すること。【解決手段】第1工程では、食品原材料を秤量した容器へ微酸性電解水を注入し、食品原材料をよく揉み洗いし、水気を切る。第2工程では、容器下部に成されている食品原材料の層の最下部から微酸性電解水が注入されるように、容器内へ再度、微酸性電解水を注入し、オーバーフローさせながら、食品原材料を浸漬する。第3工程では、容器内の微酸性電解水を入れ替え、オーバーフローさせずに食品原材料を浸漬する。【選択図】図1