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There is provided a composite sheet stock for convection heating of the surface of a food items, such as a pizza, by microwave energy. The composite sheet stock includes a layer of metal foil, such as aluminum, adhered to a microwave susceptor sheet stock having a dielectric support layer and a heat

There is provided a composite sheet stock for convection heating of the surface of a food items, such as a pizza, by microwave energy. The composite sheet stock includes a layer of metal foil, such as aluminum, adhered to a microwave susceptor sheet stock having a dielectric support layer and a heater layer of microwave interactive material allowing passage of microwave energy as it is heated thereby whereby the foil is heated by conduction from the susceptor stock when the susceptor stock is subjected to microwave radiation.

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A disposable receptacle for heating of a food article by microwave energy, said receptacle having at least a portion thereof formed from a sheet stock which is bent and folded into a configuration having a flat suface portion therof adapted to be in contact with said food article which rests thereon

A disposable receptacle for heating of a food article by microwave energy, said receptacle having at least a portion thereof formed from a sheet stock which is bent and folded into a configuration having a flat suface portion therof adapted to be in contact with said food article which rests thereon, said portion having an outer peripheral shape generally at least as large as the peripheral shape of said food article, said portion comprising; a composite, laminated sheet stock for heating, principally by conduction, the surface of a food item in contact with said flat surface portion by microwave energy, said sheet stock including a layer of microwave opaque metal foil adhered to a microwave susceptor sheet stock, said susceptor sheet stock having a dielectric support layer of paper board and a heater layer of microwave interactive material in the form of vacuum deposited aluminum on a plastic sheet, said heater layer having a surface resistivity of less than 16 ohms/inch and allowing passage of microwave energy as said heater layer is heated by microwave energy, said heater layer laminated between said paper board layer and said metal foil whereby said foil is heated by conduction from said susceptor sheet stock when said susceptor stock is subjected to direct microwave radiation by the energy source and reflective microwave radiation from said foil.