A cooking apparatus comprises a heated compartment to warm cooking media that may be packaged in metal containers or the like. The heater system includes at least one heater disposed at a location to heat the bottom of the unused cooking medium container. The heater system may also include at least one heater disposed at a location to heat at least one side of the unused cooking medium container. A cooking apparatus comprises at least one supply reservoir, a fluid motive device, various enclosed cooking medium conductors or lines, a three-way valve that introduces air for purging the lines, and a cooking medium receiving system.
