Keep hot foods at higher safe food temperatures while stored and transported in Cambro non-electric insulated food pan carriers and carts. Use to pre-warm cabinet and eliminate the use of hot water. Use one or two Camwarmers per compartment to sustain hot food temperatures at a higher levels. Jest results prove that Camwarmers help keep hot food above 140°F for almost 2 hours longer. For best performance results, heat in 350°F oven for 45 minutes and slide onto bottom rail or place on sheet pan. Move up as food pans are removed.