Patent ID: 6231903
Filing Date: 2001-05-15
Classification: B65D

Abstract:
A food package for controlling heating with microwave energy comprising:a. a microwave shielding layer with a plurality of apertures therein prior to exposure to microwave energy, with the apertures sized to permit substantially evanescent penetration of microwave energy into an interior of the package during microwave heating;b. a foodstuff contained in the food package with the foodstuff initially located in close proximity to the microwave shielding layer; andc. means for moving the microwave shielding layer away from close proximity to the foodstuff after the package and the foodstuff is irradiated with microwave energysuch that the evanescent penetration of the microwave energy is insufficient to over heat the foodstuff when the microwave shielding layer is moved out of close proximity to the foodstuff.