PROBLEM TO BE SOLVED: To provide a food storage box capable of controlling oxygen concentration in an oxygen reduced chamber within a predetermined range without using an oximeter.SOLUTION: A food storage box includes: an oxygen reduced chamber 100 an oxygen reduced device 200 using a solid polymer electrolyte film method a gravimeter 110 measuring the weight of foods stored in the oxygen reduced chamber 100 and a control part reducing an oxygen reduced amount from the oxygen reduced device 200 according to the weight of foods measured by the gravimeter 110.COPYRIGHT: (C)2015,JPO&INPIT【課題】酸素濃度計を用いずに減酸素室の酸素濃度を所定の範囲内に制御できる食品貯蔵庫を提供する。【解決手段】減酸素室100と、固体高分子電解質膜法を用いた減酸素装置200と、減酸素室100に収納された食品の重量を測定する重量計110と、重量計110によって測定した食品の重量が多いほど減酸素装置200による減酸素量を減少させる制御部とを有する。【選択図】図8
