PROBLEM TO BE SOLVED: To provide a method for producing a frozen yam capable of suppressing the overall texture and a change in taste before freezing and after freezing.SOLUTION: Provided is a method for producing a frozen yam where a grated yam is sealed into a container. The method is characterized in that a yam is mixed and stirred, a prescribed amount of the same is measured and is poured into the bottom part of a cup, the opening part of the cup is sealed with a film while filling the upper space thereof with a nitrogen gas, the same is warmed, is subjected to enzyme deactivation treatment, is water-cooled including the cup, and is thereafter cooled in an atmosphere of at least -30°C or lower.COPYRIGHT: (C)2014,JPO&INPIT【課題】 冷凍前及び解凍後のとろろ芋の総合的な食感及び味の変化を抑制できる冷凍とろろ芋の製造方法を提供すること。【解決手段】 すりおろし加工したとろろ芋を容器内に密封した冷凍とろろ芋の製造方法である。とろろ芋を混合攪拌し所定量を秤り取ってカップの底部に入れ、その上部空間を窒素ガスで満たしつつカップの開口部をフィルムで密封し、これを加温して酵素失活処理し、カップごと水冷した後に、少なくともマイナス30℃以下の環境で冷却することを特徴とする。【選択図】図5
