Abstract: A vacuum sealed container and a method for cooking food under vacuum including the steps of heating the food and the cooking liquid in a heat-and-cold resistant vacuum-sealed container having microwave permeability using the microwave oven at high power for boiling, heating the container for a required time, stopping the heating to cool the container, thereby producing a vacuum therein, heating the container for a required time to cook the food and the cooking liquid at low temperatures using the microwave oven at low power, while the container is under vacuum, and allowing the container to cool.

Abstract: A vacuum sealed preservation container comprises a container main body and a lid made of a synthetic resin which is heat resistant and cold resistant and has microwave permeability, in which the lid has on the upper surface thereof a check valve constituted such that gases in the container flow out only in one direction to the outside of the container through a vent hole and a packing mounted in a packing case disposed in contiguous with the circumferential edge thereof, and the container is constituted such that the lid and the container main body are in airtight contact with each other by way of the packing.

Abstract: A vacuum sealed preservation container comprises a container main body and a lid made of a synthetic resin which is heat resistant and cold resistant and has microwave permeability, in which the lid has on the upper surface thereof a check valve constituted such that gases in the container flow out only in one direction to the outside of the container through a vent hole and a packing mounted in a packing case disposed in contiguous with the circumferential edge thereof, and the container is constituted such that the lid and the container main body are in airtight contact with each other by way of the packing.