Provided is a freezing apparatus capable of freezing an object to be frozen efficiently according to the material or the shape of the object to be frozen during freezing of the object to be frozen using a freezing medium. A freezing apparatus (1) that freezes an object to be frozen using a freezing medium (S) has a first freezing space and a second freezing space whose inner temperatures can be adjusted. The first freezing space contains a plurality of freezing medium bags (15) with the freezing medium (S) sealed therein and in the second freezing space, the freezing medium (S) is housed in such a manner that it can immerse the object to be frozen.
