B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 81/34 (2006.01) B65D 77/22 (2006.01)
Patent
CA 2314951
The shipping and/or retail package (1, 4) described here for and with food(s) (8) intended for heating in the package (1, 4) and for consumption while hot consists of a material suitable for use in a microwave oven, where the food (8) in the package (1, 4) is preferably at least partially raw, and where, taking into account the water content of the food (8), enough liquid is present in the package for the food (8) to be cooked in a steam atmosphere which develops in the package when heated in a microwave oven, and where the package includes a one-way non-return valve (5) in a wall (4), said valve opening automatically to the outside when there is an internal excess pressure, then closing again automatically after the pressure drops, thus limiting and/or reducing the vapor pressure that develops in the package when heated rapidly in a microwave oven. The valve is designed so that it changes when the food is heated in the package to the extent that it cannot close again subsequently, at least during an initial phase of cooling of the food to a temperature suitable for consumption. Therefore, no vacuum can develop in the package while it is cooling to the temperature for consumption, and the package cannot undergo any negative deformation.
Creative New Food Dream Steam Gmbh
Gowling Lafleur Henderson Llp
Keller Karl
LandOfFree
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