Abstract: A flexible closed plastic pouch disposable within a container holding a product for supplying dispensing pressure therein. A plurality of pocket members disposed at spaced positions within said pouch with their openings facing the interior of the pouch. Each pocket member having an extension of a predetermined length attached at its end to the interior of first of two facing wall members of the pouch. Each pocket member enclosing a predetermined quantity of first component of a two-component gas generation system and being releasably closed by one of a plurality of closure members, each of said closure members having an extension of a predetermined length attached at its end to the interior of the second of the two facing walls of the pouch. The pouch contains a second component of said two-component gas generation system and a starting component encapsulated within a delay device to initially generate a predetermined quantity of pressurizing gas after a delay of a predetermined period of time.

Abstract: An inner enclosure of a predetermined size, design and construction loaded with a product and pressurized with a flowable material before said inner enclosure is closed, said inner enclosure is enclosed within a flexible outer enclosure, and said outer enclosure is closed after its internal pressure is reduced below that of the surrounding atmospheric pressure. In the event the product is tampered with through apertures in the walls of the package, the package will manifest evidence which will alert the consumer of the possibility that the product may have been tampered with.