A relation between the heat effect of metallized films for microwave heating and the degree of their metallization
1998
Housova, J. | Hoke, K. (Vyzkumny Ustav Potravinarsky, Prague (Czech Republic)) | Dobias, J.
The microwave ovens are mostly used for defrosting and reheating of precooked foods. One problem with microwave cooking is that the microwave oven does not brown and crisp the food and that the food after microwave heating is soggy. One of few possibilities how to overcome this problem is a method developed in recent years, involving the use of metallized thin layer susceptor. A susceptor consists of metallized plastic film laminated mostly on paperboad on top of which the food is placed. A susceptor absorbs part of microwave energy and converts it to heat which is transferred to the food by the conduction or radiation. The temperature of susceptor may reach 175-260 degrees C depending on properties of the metallized film and the food in contact. The maximum rate of heat generation was determined for films with optical density ranging from 0.20 to 0.26.
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