The principle of fireless cooking, as exemplified by the Caloric Cookstove, is that of recaloration, or the retention, through insulation, of heat previously generated. In cooking, ordinarily, food is heated to a certain temperature; then it is left over the fire, not to get hotter - that would be impossible - but to keep it at that degree of heat. The dissipation of heat in the surrounding air makes it necessary to keep on supplying heat in order that the cooking food may continue at the cooking temperature. A method was long sought, for hygienic as well as economic reasons, by which, the heat energy once generated, might be conserved without having to add constantly thereto. Such a method is hygienic, because it is admitted that food cooked in a comparatively even temperature is not only more nutritious, but also more palatable than that cooked fiercely over, on or in the hottest possible temperature. The Caloric was the first to utilize practically this principle in the making of a commercial fireless cookstove. Now, the Caloric has made another great stride forward, in the evolution of the new Caloric, which has literally perfected the art of fireless cooking, not alone in the boiling, steaming and stewing features, but it has also rendered possible baking and roasting as well. Of course, for baking and roasting, some heat must first be placed in the cabinet, and this is done by means of steatite radiators. With this heat the new Caloric economically and satisfactorily accomplishes practically everything which is possible on a range or any other stove.