the present invention relates to a method and device for cold transfer . according to the invention , in an intermediate loop a cold - bearing fluid being in diphasic form , that is , a homogeneous mixture of water and ice , for example . this fluid is heat exchanged , on the one hand with a primary source of cold , and on the other hand with the various secondary sources of heat represented by each enclosure to be cooled . the invention is adaptable to the thermal control of a vinification process .