A homogenizer, for homogenizing a tissue sample collected from a living body, comprising: a main body ; and a storage cooler , comprising a container holder for holding a sample container , configured to cool a tissue sample in the sample container held by the container holder , wherein the main body has a blender for crushing the tissue sample in the sample container held in the storage cooler , wherein the storage cooler is detachably installed to the main body , and in that the storage cooler is configured to hold a plurality of sample containers , and the main body has the same number of blenders as the number of sample containers that can be held by the storage cooler , wherein the main body comprises: an installation section for receiving the storage cooler set by the user; and a moving section configured to guide the movement of the installation section between an installing position (Y) at which the user installs the storage cooler on the installation section , and a homogenizing position (X) at which the blender accesses in the sample container held by the storage cooler , characterized in that : the main body and the storage cooler respectively have a magnet ; and when the storage cooler is at the homogenizing position (X), the magnet of the main body and the magnet of the storage cooler are mutually attractive. a main body ; and a storage cooler , comprising a container holder for holding a sample container , configured to cool a tissue sample in the sample container held by the container holder , wherein the main body has a blender for crushing the tissue sample in the sample container held in the storage cooler , wherein the storage cooler is detachably installed to the main body , and in that the storage cooler is configured to hold a plurality of sample containers , and the main body has the same number of blenders as the number of sample containers that can be held by the storage cooler , wherein the main body comprises: an installation section for receiving the storage cooler set by the user; and a moving section configured to guide the movement of the installation section between an installing position (Y) at which the user installs the storage cooler on the installation section , and a homogenizing position (X) at which the blender accesses in the sample container held by the storage cooler , characterized in that : the main body and the storage cooler respectively have a magnet ; and when the storage cooler is at the homogenizing position (X), the magnet of the main body and the magnet of the storage cooler are mutually attractive. an installation section for receiving the storage cooler set by the user; and a moving section configured to guide the movement of the installation section between an installing position (Y) at which the user installs the storage cooler on the installation section , and a homogenizing position (X) at which the blender accesses in the sample container held by the storage cooler , characterized in that : the main body and the storage cooler respectively have a magnet ; and when the storage cooler is at the homogenizing position (X), the magnet of the main body and the magnet of the storage cooler are mutually attractive. <EOS>