A device comprising packaging, in the form of an envelope fabricated from a composite material, impermeable to liquid water, but permeable to gases and containing any one of a number of fill material formulations currently available in commercial, oxygen 'scavenging' food packaging inclusions, which include, as the principal active component, the alternatives of either finely comminuted iron metal, ascorbic acid, calcium ascorbate, sodium ascorbate, sodium erythorbate or finely comminuted palladium metal, being designed to establish and maintain an oxygen free atmosphere within the headspace of bottles, sachets or cartons of aqueous liquid foods and beverages.
