To provide a freezer which stably retains a supercooled state and maintains the quality and taste of a cooled object.SOLUTION: A freezer C1 includes: a freezer body 100 including a first heat insulation material 101 in an inner wall； a cooling box B1 formed by second heat insulation materials (201 to 203) and placed at an interior of the freezer body； and a direct cooling type cooling means (a compressor 400) which cools the interior of the freezer body and an interior of the cooling box. Supercooling zones (Z1, Z2) in which a cooled object 300 is frozen through a supercooling state are disposed at the interior of the freezer body or the interior of the cooling box.SELECTED DRAWING: Figure 2【課題】過冷却状態を安定して保持し、被冷却物の品質や食味を維持することができる冷凍庫を提供する。【解決手段】冷凍庫Ｃ１は、第１の断熱材１０１を内壁に備える冷凍庫本体１００と、第２の断熱材（２０１～２０３）で構成され、冷凍庫本体内に載置される冷却ボックスＢ１と、冷凍庫本体内および冷却ボックス内を冷却する直冷式の冷却手段（コンプレッサ４００）とを備え、被冷却物３００を過冷却状態を経て凍結する過冷却ゾーン（Ｚ１、Ｚ２）が、冷凍庫本体内または冷却ボックス内に配置される。【選択図】図２
