A new and useful method and apparatus for processing food at selected temperatures including food holding cabinet; food support means disposed within the food holding cabinet to receive the food to be processed; a liquid reservoir to hold a selected liquid to be evaporated from a surface thereof; first heater to heat the liquid to be evaporated to a first temperature, second heater to heat air in the food holding cabinet to increase the temperature of the air in the food holding cabinet to a second temperature where the operation of the first and second heaters can be simultaneous.