A defrosting system includes an RF signal source, one or more electrodes, a transmission path between the RF signal source and the electrode(s), and an impedance matching network coupled along the transmission path. A system controller may modify the impedance matching network to reduce the reflected signal power. The system controller may determine an initial estimate of the mass of the load. Desired signal parameters for the RF signal may be determined based on the initial estimated mass of the load. The system controller may determine a refined estimate of the load mass based on a rate of change of an S11, VSWR, or reflected power parameter measured at the transmission path, or based on elapsed time between matches. Refined signal parameters for the RF signal may be determined based on the refined estimated mass.

A system and method for optimal cooking operations and pre-hazard monitoring using continuous and adaptive machine learning enabling user specific and customizable optimizable, specific, and customizable cooking operations, and identification of pre-hazardous and user specific non-optimal conditions that may arise during cooking operations.

A combined apparatus for heating, cooking, grilling and defrosting of foods of various kinds, depending on the type of foods to be treated from time to time and the duration of the foods treatment foreseen by each user of the same apparatus, where each hot treatment of foods may be effected either by heating or by microwaves only, or by heating and microwaves combined to each other. There are described in detail all the technical characteristics of the apparatus and the relative control circuits either for heating or for generating the microwaves. Advantages include use of a sole and single apparatus for hot treating the foods for providing for the heating, the cooking, the grilling and the defrosting of the same foods, instead of employing as it happens hitherto of single separated apparatuses for performing the same functions.

The invention relates to a microwave oven for material to be heated, in particular food material (40). The microwave oven (10) has an oven housing (12), to the housing cover (14) of which a number of microwave radiation sources (18) is coupled by means of microwave coupling elements (16). The microwave coupling elements (16) protrude from the housing cover (14) and are distributed in the peripheral direction. At least one material holding device (22) for the material (40) is provided in the oven housing (12), which material holding device can be rotated about a central axis (26) by means of a drive device (24). The at least one material holding device (40) is formed by a rotary plate (28) for holding the material (40) in a defined, positionally accurate manner.

A defrosting system includes an RF signal source, one or more electrodes, a transmission path between the RF signal source and the electrode(s), and an impedance matching network coupled along the transmission path. A system controller may modify the impedance matching network to reduce the reflected signal power. The system controller may determine an initial estimate of the mass of the load. Desired signal parameters for the RF signal may be determined based on the initial estimated mass of the load. The system controller may determine a refined estimate of the load mass based on a rate of change of an S11, VSWR, or reflected power parameter measured at the transmission path, or based on elapsed time between matches. Refined signal parameters for the RF signal may be determined based on the refined estimated mass.

A microwave heating apparatus comprises: a housing, arranged to define a cavity; a semiconductor RF generator, configured to provide at least one RF signal; and a plurality of RF antennas, arranged in a distributed way within the cavity and configured to radiate the at least one RF signal from the semiconductor RF generator, such that items received in the cavity are dielectrically heated by the radiation.

A volatile content analysis instrument is disclosed that includes a cavity and a microwave source positioned to produce and direct microwaves into the cavity at frequencies other than infrared frequencies. A balance is included with at least the balance pan (or platform) in the cavity. An infrared source is positioned to produce and direct infrared radiation into the cavity at frequencies other than the microwave frequencies produced by the microwave source. A lens is positioned between the infrared source and the balance pan for more efficiently directing infrared radiation to a sample on the balance pan. The lens has dimensions that preclude microwaves of the frequencies produced by the source and directed into the cavity from leaving the cavity.

In a method for controlling a cooking device, during operation of the cooking device at least one monitoring data is obtained, with a dimension of the monitoring data including at least one of a surface temperature of a cooked object, a weight of the cooked object, or a chamber temperature of the cooking device. The monitoring data is inputted to a preset regression model to obtain a predicted internal temperature of the cooked object, with the preset regression model representing a correlation between an internal temperature of the cooked object and the monitoring data. An operating status of the cooking device is adjusted according to at least the predicted internal temperature of the cooked object.

Provided in various embodiments of the present disclosure are a device for measuring the load of food materials put on a tray in a cooking apparatus, and a control method therefor. To this end, the cooking apparatus has a stick-shaped guide rod extending in the vertical direction toward the bottom of a cavity from the lower side of an accommodation tray to which each of a plurality of rollers making roll-contact with the bottom surface of the tray can be independently mounted, has a first coupling part formed on a load-transferring member such that the lower end portion of the guide rod is fitted and fixed therein, and generates an electrical signal in a load cell due to the load transferred by the load-transferring member. Other various embodiments are possible.

The present invention relates to a system (1a; 1b; 1c; 1d; 1e) for preparing foods (100), comprising a housing (10) for receiving the food (100), a recognition device (20) for recognizing at least one food carrier (200) couplable with the system (1a; 1b; 1c; 1d; 1e), and thereby recognizing the weight of the food carrier (200), as well as a determining device (40) for determining the tare weight of the food based on the detected weight of the food carrier (200).