Vacuum container assembly and method of use

A vacuum container assembly comprising:

• a container comprising glass material having a bottom wall and a perimeter wall attached to and extending upwardly from the bottom wall, the perimeter wall having an upper edge defining an open top, wherein the container has an interior space bounded by the perimeter wall that is configured for receiving food;
• a cover having a size being complementarily to the open top such that the open top is closed when the cover is positioned on the upper edge of the perimeter wall, the cover comprising:
• a metal plate;
• a gasket being attached to a lower surface of the metal plate and extending circumferentially around the metal plate proximate to a perimeter edge of the metal plate, the gasket engaging the perimeter wall upon positioning of the cover upon the container to form an air-tight seal between the metal plate and the perimeter wall, the gasket being co-extensive with the perimeter edge of the metal plate and being attached to both the lower surface and to an upper surface of the metal plate adjacent to the perimeter edge, whereupon the gasket sealingly engages the upper edge of the perimeter wall when the partial pressure is generated within the container;
• and
• a valve being attached to and extending through the metal plate to selectively allow passage of air through the metal plate wherein the valve is configured to fluidly couple a vacuum generator to the interior space to generate a partial pressure within the container such that the gasket sealingly engages the perimeter wall;
• and
• wherein the metal plate is dish shaped, such that the metal plate comprises:
• a peripheral lip, the peripheral lip being circumferentially complementarily to the upper edge of the perimeter wall, the gasket being co-extensive with the peripheral lip;
• a sidewall, the sidewall being attached to and extending downwardly from the peripheral lip, the sidewall being proximate to an inner surface of the perimeter wall when the cover is positioned upon the container, the gasket being coextensive with the sidewall;
• and
• a base panel, the base panel being attached to the sidewall distal from the peripheral lip.