Packaging method for food product heated by exothermic reaction comprises flexible impermeable sealed envelopes containing products under vacuum and reactive materials inside insulated volume

摘要

The food product (1) is placed in a flexible envelope (2) which is impermeable and sealed and contains a vacuum. This envelope is then enclosed in another impermeable sealed flexible volume (8) that contains one of the reactive components (5) in a further volume. The other reactive component (6) is enclosed in a similar way. The assembly is located in a housing (9) printed on its external surface.