Food product packaging allowing discharge of gas in case of high internal pressures

摘要

The packaging (1) comprises a container (3) having a flat edge (6). A lid (8) is fixed onto the container edge by heat sealing of layers (3a,8a) on the internal surface peripheries. Before heat sealing the lid onto the container a hole (10) is made in the edge of the container. The lid has on its internal surface a thermo-fusible application (12) in the zone (11) which covers the hole region. The application zone is equal to a hundred times the hole surface section. which is less than 1 mm<2>.