An apparatus such as a domestic oven incorporates an induction motor which drives a fan. The temperature of the circulating gas and the slip of the rotor, coupled to the fan, are used to determine the humidity of gas within the oven. The temperature of the stator coil is also taken into account. The fan is driven with relatively high torque to maximize the signal to noise ratio. The fan may be provided as the main fan or as a secondary fan dedicated to humidity measurement. In either case the fan has a long operational lifetime.

A multi-compartment oven provides a side directed drainage system permitting moisture removal from the cavities without interference with the integrity of lower cavity volumes and permitting removability of cavity dividers.

A multi-compartment oven provides a side directed drainage system permitting moisture removal from the cavities without interference with the integrity of lower cavity volumes and permitting removability of cavity dividers.

A multi cavity oven provides improved cavity and jet plate cleaning by directing pressurized cleaning spray into the jet plates while installed within the oven through cleaning spray inlet ports in the walls of the removable jet plates. By directing cleaning spray directly into the interior of the jet plates, cooking juices that fall through the slots and openings and into the air passageway of the jet plates can be pressure cleaned and drained from the interior of the jet plates without removing the jet plates from the oven cavity.

A multi cavity oven provides improved cavity and jet plate cleaning by directing pressurized cleaning spray into the jet plates while installed within the oven through cleaning spray inlet ports in the walls of the removable jet plates. By directing cleaning spray directly into the interior of the jet plates, cooking juices that fall through the slots and openings and into the air passageway of the jet plates can be pressure cleaned and drained from the interior of the jet plates without removing the jet plates from the oven cavity.

A process and apparatus for heating an oven using nebulized water particles and compressed air including the steps of heating water contained in reservoir that is located outside of a cooking chamber by transferring water within the reservoir through a water heater to reach a desired end point temperature that is less than boiling, heating compressed air by sending compressed air through an air heater that is submerged within the water of the reservoir, conveying the heated water and the heated compressed air to a nebulizer, nebulizing the heated water into heated water particles and introducing the heated water particles into the cooking chamber via the heated compressed air.

A process and apparatus for heating an oven using nebulized water particles and compressed air including the steps of heating water contained in reservoir that is located outside of a cooking chamber by transferring water within the reservoir through a water heater to reach a desired end point temperature that is less than boiling, heating compressed air by sending compressed air through an air heater that is submerged within the water of the reservoir, conveying the heated water and the heated compressed air to a nebulizer, nebulizing the heated water into heated water particles and introducing the heated water particles into the cooking chamber via the heated compressed air.

A steam generator for generating steam by boiling water, or other hot water heating device, in either case such as for use in a steam cooker or warewasher, includes a tank structure providing a heating chamber for holding water, and at least one heating element associated with the tank structure for heating water. The tank structure includes a main body wall having a U-shaped cross-sectional profile formed by opposed first and second side wall portions of the heating chamber and a curved bottom wall portion of the heating chamber, wherein the curved bottom wall portion is monolithic with the first and second side wall portions, wherein the main body wall is sheet metal material that has been curved.

A method for determining the moisture within a cooking chamber of a cooking device has the following steps: a) an acoustic oscillation is generating in a resonance chamber, b) a control unit receiving the signals picked up by a microphone in the resonance chamber, c) the control unit determining the frequency spectrum of the acoustic oscillations present in the resonance chamber on the basis of the received signals and determines the speed of sound within the cooking chamber on the basis of the frequency spectrum, d) the control unit receives receiving a temperature value; and e) the control unit determines the moisture within the cooking chamber by means of the temperature value and the speed of sound.

A cooking appliance including a cleaning environment provided to be able to easily remove contaminants inside the cooking appliance by heating the inside of a cooking room to a temperature for amorphization of the contaminants, and method for controlling the same. The cooking appliance includes a main body configured to have a cooking room; a steam generator configured to supply steam to the cooking room; a water supplier arranged in the main body and configured to store water; and a pump assembly configured to supply water to the steam generator and the cooking room from the water supplier.