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Utensilios de cocina para cocción de alta calidad en el microondas


Oferta Tecnológica
Un instituto danés del sector de envases de productos alimenticios ha desarrollado utensilios de cocina para calentar alimentos en el microondas de forma homogénea evitando puntos calientes y fríos. El uso del sistema de etiquetado en molde permite fabricar bandejas de plástico de cualquier geometría con guías metálicas integradas. A pesar de incorporar elementos metálicos, esta bandeja es totalmente segura en el microondas gracias a su diseño especial. El instituto busca un socio industrial del sector de utensilios de cocina y envases de productos alimenticios para la licencia y fabricación exclusiva de utensilios de cocina para microondas.


Kitchenware for higher quality microwave cooking
A Danish institute working in the field of food packaging, has developed special kitchenware/utensils, which solve the problem of inhomogeneous microwave heating ("hot and cold spots"). They are looking for an industry partner working with kitchenware/food packaging to license and exclusively manufacture the microwave-active kitchen utensils.
Researchers working with packaging technologies at a Danish institute have developed novel ´microwave-active´ kitchen utensils and thus solved a common problem that occurs when microwaving food in plastic, carton or glass trays, both in the microwaveable kitchenware and ready-meal packaging currently available on the market - inhomogeneous heating, i.e. food doesn´t get thoroughly heated.

The solution, in the form of the utensils developed by the institute, is to enclose the food from all sides with partially transparent metallic patterns enclosing and this has proved to improve heating homogeneity by 80%. Using so-called In-Mold Labelling technology, it´s possible to manufacture plastic trays of any geometry with built-in metal patterns. Despite the presence of metal, the tray remains absolutely safe in microwave due to special physical design.

In practice this means that the temperature variations in the microwaved food will be reduced by 20-30°C. Outstanding performance of these partially transparent metallic patterns has been proved by a consumer survey undertaken in the frame of one of recently completed EU projects where 80% of respondents perceived food microwaved using developed utensils as being heated 100% homogeneously.

Figures 1 and 2 on the picture below illustrate the results of microwaving food using a "naked" plastic tray and the same tray placed in a special container with partially transparent metallic pattern. The food heated in the plastic tray has four hot spots with the temperature of ~ 100°C where the food is deteriorated due to dehydration. At the same time, the majority of the food has not achieved 75°C as required by regulations. The metallic pattern improved heating so that the majority of the food is heated up to 75-85°C and the overheated spots are eliminated.
Both meals were microwaved during 7 minutes in the same 750-W microwave oven at full power.

The institute now seeks a manufacturer of kitchen appliances, tableware, food packaging etc. to license, manufacture and bring the product to market.
Advantages and Innovations:
1. The technology opens up new opportunities in the kitchenware market for heating/making food in microwave ovens and appliances where the microwave is combined with convective and/or infrared heating
2. Better tasting food. Without patterned shields, most of foods cannot be heated homogeneously. This is because when the rim part of a meal is heated enough, the center is not, and if the center will get enough heat, the rim will be simply carbonised. This can spoil even high quality food
3. Elimination of the need to stir the food in order to redistribute the heat
4. More accurate predictability of the heating time and cooking results.
Stage of Development:
Available for demonstration
Secret Know-how
CommeR Statunts Regarding IPR Status:
The institute possesses computer simulation models that enable design of conductive metal patterns partially transparent for microwaves. These patterns allow selective homogeneous microwave heating of different multicomponent meals.

Partner sought

Type and Role of Partner Sought:
A company interested in becoming licensee and exclusive manufacturer, who also takes the product to market, of the microwave-active kitchen utensils developed jointly with the institute. This could be a manufacturer of kitchen appliances, tableware, food packaging etc.


Type and Size of Client:
R&D Institution
Already Engaged in Trans-National Cooperation:
Languages Spoken:


Technology Keywords:
03010 Aplicaciones y productos para el hogar