A device for heating and/or cooling and/or maintaining at temperature a receptacle suitable for receiving food products in particular, comprising a base module which comprises:
- heat production means (5) and cold production means (7), said cold production means comprising a reservoir (7) containing a fluid and possibly connected to an evaporator, said heat production meetings comprising a thermochemical reactor (5) connected to said reservoir (7) and containing a reagent capable of reacting reversibly with said fluid during an exothermic reaction;
- valve means enabling said reservoir (7) or said evaporator to be connected to said thermochemical reactor (5) for the production of heat at said reactor (5), due to the aforementioned exothermic reaction and for the simultaneous production of cold at said reservoir (7), resulting from the expansion and/or evaporation of said fluid;
- at least one receptacle (3) of thermally conductive material that has a first face capable of receiving the food to be heated/cooled and a second face, opposite to said first face and disposed in contact with said heat production means (5) or said cold production means (7);
- an insulating element (15) which thermally insulates said production means (5) from said cold production means (7);
- and
- wherein said reactor (5) and/or said receptacle (3) are mounted so as to be removable from said base module.