PROBLEM TO BE SOLVED: To provide a processing method of a meat mass in which a meat mass of a relatively solid part can be processed softly more than before, and provide a meat mass sinew cutting device for use in the same.SOLUTION: A meat mass sinew cutting method comprises: a thawing step of thawing a refrigerated meat mass M so that the meat mass M may become a half-thawing state a first piercing step of piercing a first blade part 4b (blade part 4b of a head part 4A) into a half-thawed meat mass M1 after the thawing step, and then drawing out and a second piercing step of piercing the first blade part 4b into the meat mass M1, and simultaneously piercing a second blade part 4b (blade part 4b of a head part 4B) into the meat mass M1 from the side opposite to the first blade part 4b, and then drawing out.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2018,JPO&INPIT【課題】比較的固い部位の食肉塊を、従来以上に柔らかく加工することが可能な食肉塊の加工方法及びそれに用いられる食肉塊筋切装置を提供する。【解決手段】食肉塊の筋切方法が、冷凍された食肉塊Mを、該食肉塊Mが半解凍状態となる様に解凍する解凍工程と、該解凍工程の後に、第1の刃部4b(ヘッド部4Aの刃部4b)を、半解凍された食肉塊M1に突き刺し、その後、引き抜く第1の突刺工程と、第1の刃部4bを食肉塊M1に突き刺すと同時に、第2の刃部4b(ヘッド部4Bの刃部4b)を、第1の刃部4bとは反対側から食肉塊M1に突き刺し、その後、引き抜く第2の突刺工程と、を含む様にする。【選択図】図4
