| 摘要 |
Procedure for conserving a perishable product in a container consists of fitting the container with a supple cover (2) which has at least one projecting tongue (5) to form a compartment above the product that is impermeable to fluids. Procedure for conserving a perishable product in a container consists of fitting the container with a supple cover (2) which has at least one projecting tongue (5) to form a compartment above the product that is impermeable to fluids. The cover is distended by pulling on the tongue to create a temporary outlet, and is then compressed to expel the fluid, e.g. atmospheric air, from the container before releasing the tongue to seal it. In a variant of the procedure one of the tongues can be inserted in the container to create an outlet gap, and this can be followed by a re-heating or cooking process, e.g. in a microwave oven.
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