Tray for defrosting food products with microwaves

A - Human Necessities – 47 – J

Patent

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Details

A47J 27/00 (2006.01) A47J 36/02 (2006.01) B65D 81/34 (2006.01)

Patent

CA 2587317

The invention relates to the industry involved in the manufacture of accessories for microwave ovens that are used to defrost foods which behave differently when subjected to microwaves. The invention is also suitable for use in the packaging industry for frozen food products. The invention is advantageous over existing trays in that it enables raw ingredients to be defrosted without being cooked and cooked products to be defrosted without the consistency thereof being altered, using a faster defrosting operation. In addition, the tray is easy to manufacture and is equipped with a cover that can be easily removed from the rest of the package without contaminating the product, with no type of adhesive being used. In this way, sushi rolls can be easily picked up with Japanese chopsticks. Moreover, the heat that is generated owing to microwave exposure during defrosting can travel from one compartment of the tray to another. The invention is characterised in that it comprises a lower base, known as the tray, and a cover which is heat-sealed along the periphery at the points at which the two elements meet, both of said elements being made from a material with low absorption of microwave-generated heat, specifically materials made from polyester resin such as CPET (tray) and film (cover).

La présente invention concerne le secteur industriel de la fabrication d'accessoires pour fours à micro-ondes pour la décongélation d'aliments aux comportements différents face à l'incidence des micro-ondes. L'invention s'applique également à l'industrie des emballages pour produits alimentaires congelés. L'avantage de l'invention par rapport aux plats de l'état de la technique, c'est qu'elle permet de décongeler les composants crus de la recette sans les cuire, et de décongeler les composants cuits sans en changer la consistance, l'opération de décongélation étant plus rapide. Le plat de l'invention est facile à fabriquer, et son couvercle peut être facilement séparé du reste de l'emballage sans contaminer le produit avec aucun type d'adhésif. Le plat de l'invention permet de prendre facilement le rouleau de sushi avec les baguettes japonaises, permettant le passage de la chaleur pouvant être générée lors de l'exposition aux micro-ondes au cours de la décongélation, d'un compartiment à un autre. Le plat se caractérise en ce qu'il comprend une base inférieure formant le plat en soi, et un couvercle thermoscellé dans la partie périphérique au niveau de laquelle viennent en contact les deux sections, toutes deux formées d'un matériau de faible absorption de la chaleur généré par les micro-ondes, en particulier de matériaux faits de résine polyester, comme pour le CPET (plat) et la pellicule (couvercle).

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