A cooking adjustment system for a cooking appliance includes a body that defines a cooking cavity. A steam generator system is coupled to the body. The steam generator system is configured to inject steam into the cooking cavity. An air temperature sensor is disposed within the cooking cavity and configured to sense a dry bulb temperature. A food probe has multiple food temperature sensors. At least one of the food temperature sensors is configured to sense a surface temperature of a food item. A controller is communicatively coupled to the steam generator system, the air temperature sensor, and the food probe. The controller is configured to determine a wet bulb temperature utilizing the surface temperature of the food. The controller is configured to adjust relative humidity within the cooking cavity in response to at least one of the wet bulb temperature and the dry bulb temperature.

A microwave oven is described herein. In some instances, such a microwave oven may include a housing; a rotating turntable assembly disposed in a cooking cavity of the housing; a probe powered by the turntable assembly, where the probe is configured to measure an environmental condition during a cooking cycle and where the probe is configured to transmit a signal regarding the environmental condition; and a controller disposed in the housing and configured to receive the signal regarding the environmental condition from the probe. A method of operating a microwave oven for sous vide cooking is also disclosed.

Embodiments include microwave cooking systems and methods of their operation, which are configured to heat food loads. Using a phased array, frequency and phase conditions and corresponding return losses are mapped in a cavity of the microwave cooking system. Using one or more thermal cameras, positions of E field maximums also are mapped in the cavity. The frequency and phase conditions are time division multiplexed so that heat maximums sum over a cooking cycle to provide a heating profile in a zone of interest.

A system includes a core temperature probe and a microwave cooking device. The core temperature probe includes a temperature sensor to determine a temperature information, a coaxial line including a lambda/4 line resonance element adjusted to a microwave frequency, and a signal transmission antenna connected to the temperature sensor via the coaxial line and adapted to emit the temperature information at a signal transmission frequency that differs from the microwave frequency. The system is hereby constructed to transmit a signal at the signal transmission frequency wirelessly between the signal transmission antenna of the core temperature probe and a signal transmission antenna of the microwave cooking appliance.

Systems and methods include a cooking appliance comprising a heating element disposed within a cooking chamber and operable to selectively emit waves at any of a plurality of powers and/or peak wavelengths, a camera operable to capture an image of the cooking chamber, and a computing device operable to supply power to the heating element to vary the power and/or peak wavelength of the emitted waves and generate heat within the cooking chamber, and instruct the camera to capture the image when the heating element is emitting at a stabilized power and/or peak wavelength. The computing device is operable to generate an adjusted captured image by adjusting the captured image with respect to the stabilized power and/or peak wavelength. The computing device comprises feedback components operable to receive the adjusted captured image, extract features, and analyze the one or more features to determine an event, property, measurement and/or status.

A microwave appliance includes a cabinet defining a cooking chamber, a magnetron, a temperature sensor directed toward the cooking chamber, and a controller. The controller is configured to measure a raw temperature of the cooking chamber, determine a calibrated temperature from the raw temperature and a conversion model, determine a preheat power level for the magnetron, and operate the magnetron at the preheat power level. The controller is further configured to determine a calibrated chamber temperature using a chamber temperature and a preheat conversion model and determine the calibrated chamber temperature has reached a target temperature. The controller is further configured to monitor a calibrated cooking temperature, based on a cooking temperature and a cooking conversion model, and operate the magnetron to a cooking power level to maintain the calibrated cooking temperature at the target temperature. A method of operating a microwave appliance with a temperature sensor is also disclosed.

An electromagnetic cooking device and method of controlling the same is provided herein. The cooking device includes a cavity in which a food load is placed and a plurality of RF feeds configured to introduce electromagnetic radiation into the cavity for heating the food load. A controller is provided and is configured to: (a) measure resonances in the cavity; (b) generate a resonance map resulting from the measured resonances; (c) conditionally repeat steps (a) and (b); (d) detect a melting state of the food load based on variations between the resonance maps; and (e) adjust a power level of the electromagnetic radiation in response to detection of the melting state.

A microwave heating apparatus includes a cavity arranged to receive a load. At least one microwave generator is configured to feed a plurality of microwaves into the cavity. At least one image-capturing device and a control unit is adapted to obtain load volume information of the load within the cavity based on information recorded by the image-capturing device about at least one portion of the load, obtain load density information using at least one of a user input and information recorded by the image-capturing device about at least one portion of the load, determine load mass information based upon the load volume information and the load density information, determine a heating pattern based upon the load mass information and control the at least one microwave generator to provide the heating pattern within the cavity.

A method of heating a load in a cavity of an apparatus for heating objects by transmitting to the cavity electromagnetic waves may include determining, for each of a plurality of modulation space elements (MSEs), a dissipation ratio indicating a proportion of power dissipated in the load to power transmitted into the cavity, wherein each MSE is a set of one or more values of variables, each controllable by the apparatus, that affect a field pattern excited in the cavity. The method may further include selecting one or more MSEs from the plurality of MSEs based on the dissipation ratio determined for each of the plurality of MSEs, wherein each of the selected one or more MSSEs is associated with a corresponding dissipation ratio that is lower than a threshold and applying RF energy to the load at the selected one or more frequencies.

A microwave heating device includes a heating chamber that accommodates an object to be heated, a microwave generator configured to generate microwaves, a wave guide tube configured to guide the microwaves to the heating chamber, and an electromagnetic field distribution adjustment device that is provided in a two-dimensional region located in at least a part of a wall face within the heating chamber. The electromagnetic field distribution adjustment device has a plurality of metal pieces arranged to fill a predetermined two-dimensional region, and a switch provided between two metal pieces adjacent to each other among the plurality of metal pieces. The switch is connected to the two metal pieces adjacent to each other through two conductors each of which is provided on a corresponding one of the two metal pieces adjacent to each other, and smaller than the two metal pieces adjacent to each other. According to the present aspect, uneven heating, which is caused by heating an object to be heated with a microwave heating device, can be reduced.