Abstract: It comprises an inner wrapper which contains the food product, an outer package of plastic material which encloses said inner wrapper, a layer of a heat-concentrating material, arranged adjacent the inner wrapper, and a substrate attached to an outer face of said outer package. The layer of heat-concentrating material causes the opening of the outer package by melting a portion thereof, during heating of the assembly in a microwave oven, and the substrate prevents the outer package from sticking to the base of the oven. There can also be a sheet of insulating material between the inner wrapper and the outer package. Handling operations are reduced and the protection and optimum degree of humidity are maintained until the time the product is put in the oven.

Abstract: It includes a microwave oven (3) with a front door (31) that can slide vertically and a conveyor band (6) with a horizontal section extending as far as the interior of the oven; the products fall on the band by gravity from storage means (5). The oven may also have a tilting bottom (32) for expulsion of the products. The storing devices (5) are attached to a frame (4) hinged to the housing (1) and are provided with a ramp (57) for the extraction of the products through an outlet opening (55) arranged above the band (6). The machine is compact, mechanically simple and has a reduced cost.

Abstract: It comprises an inner wrapper which contains the food product, an outer package of plastic material which encloses said inner wrapper, a layer of a heat-concentrating material, arranged adjacent the inner wrapper, and a substrate attached to an outer face of said outer package. The layer of heat-concentrating material causes the opening of the outer package by melting a portion thereof, during heating of the assembly in a microwave oven, and the substrate prevents the outer package from sticking to the base of the oven. There can also be a sheet of insulating material between the inner wrapper and the outer package.

Abstract: The machine comprises a microwave oven (2), a supply system for supplying the products (P) to the oven, a device for expulsing the products from the oven and control means (6); said product supply system comprises a storage and dosage device (3), a device for collecting (4) the products and a device for introducing (5) the products in the oven (2). Conveniently, the device (3) has a plurality of conveyor belts (30) parallel to each other; the device (4) comprises a collector platform (47) mounted with respect to the structure with three degrees of freedom of translation, along three directions orthogonal to each other; the device (5) has a revolving arm with a fork. The production costs are of the machine reduced because it incorporates a conventional oven; the machine is also very versatile since it can dispense different types of packaged products recently prepared.