Abstract: The present invention is concerned with flexible cooking containers which the user can fill with selected foodstuff and then seal same prior to inserting in the microwave oven for preferably cooking the contents at greater than atmospheric pressure for improved health/hygiene reasons and for improved taste and flavor. The user can thus select the nature of the foodstuffs which are to be cooked.

Abstract: A composite or laminate film or sheet of plastics material for use in microwave ovens comprises at least three layers of plastics material bonded and/or adhered together and with the central layer being of unoriented plastics material or of less oriented material relative to the orientation of the plastics material(s) of the outer layers, and/or being of lower melting point materials than the outer layers.

Abstract: A packaging for microwave cooking having a plastics material film (1, 2, 3) or sheet and including a discontinuous coating of metal particles (4) applied to said film or sheet, or a disposition of discrete metal particles included in said film or sheet, wherein the small discrete particles of metal do not form a continuous layer of metal particles and/or such that they do not act as a susceptor, and such as to enable microwave cooking without undesirable reactions (such as sparks or flames) of small or individual portions of foodstuffs, and/or without undesirable hot-spot reactions with food such as may otherwise produce such.

Abstract: A composite or laminate film or sheet of plastics material for use in microwave ovens comprises at least three layers of plastics material bonded and/or adhered together and with the central layer being of unoriented plastics material or of less oriented material relative to the orientation of the plastics material(s) of the outer layers, and/or being of lower melting point materials than the outer layers.

Abstract: A bag or pouch container for use in cooking foodstuffs in a microwave oven, comprising two sheets of plastics material bonded or welded together along its edges (2) to define a foodstuff receiving and/or containing interior and being closed or closable to permit cooking under pressure i.e. at above atmospheric pressure, said sheets also being bonded or welded together along a bonding line or lines (4) extending between edge regions to define one or more compartments (5, 6) within the container for receiving and/or containing foodstuffs or other contents, with said line or lines being separable or rupturable at a desired temperature and/or pressure to permit flow of one foodstuff into the other compartment, and a pressure relief valve or means (17) operable to relieve pressure within the container during cooking whilst permitting cooking to continue thereafter at a pressure above atmospheric pressure.

Abstract: The present invention is concerned with flexible cooking containers which the user can fill with selected foodstuff and then seal same prior to inserting in the microwave oven for preferably cooking the contents at greater than atmospheric pressure for improved health/hygiene reasons and for improved taste and flavour. The user can thus select the nature of the foodstuffs which are to be cooked.