Patent ID: 7683292

Claim:
A method for cooking a food with infrared radiant heat, said method comprising the steps of: cooking a food located in an oven chamber with radiant heat at a first infrared wavelength emitted from at least one first infrared heater located on one side of the food; and radiant heat at a second infrared wavelength from at least one second infrared heater located on another side of the food; wherein: at least one of the first infrared heater and the second infrared heater comprises an electrically conductive filament inside of a quartz glass tube; and the quartz glass tube comprises at least one of: a quartz glass tube chemically etched so as to pass at least one of the first infrared wavelength and the second infrared wavelength from the electrically conductive filament; and a quartz glass tube having extruded grooves therein so as to pass at least one of the first infrared wavelength and the second infrared wavelength from the electrically conductive filament.