PROBLEM TO BE SOLVED: To provide a refrigerator including a case which is disposed in the refrigerator thereby improving environment conditions in the refrigerator.SOLUTION: A refrigerator 1 includes: multiple storage rooms (3 to 7); a cooler 14; a fan 40 which sends cooling air from the cooler 14 to the multiple storage rooms; and a cooling air passage 37 in which the cooling air sent by the fan 40 passes and is sent to the multiple storage rooms. The refrigerator further includes: a container 10 which is disposed in a vegetable room 4 that is one of the storage rooms, the container 10 which may be drawn; and a case 50 which stores a refrigerator inner environment condition adjustment material M for adjusting an environment in the refrigerator and has a hole 51 for emitting a component of the refrigerator inner environment condition adjustment material M to the exterior. The case 50 is detachably disposed facing an inner part of the container 10.
