Stackable vented food container

A stackable container comprising:

• a base comprising a bottom surrounded by a wall that extends upward from the bottom to an upper rim of the base, the wall being shaped such that the upper rim of the base extends horizontally beyond the bottom about its entire perimeter;
• a lid comprising:
• an outer region that is configured for direct attachment to the upper rim of the base;
• an intermediate region that extends upward from the outer region, the intermediate region being adjacent to and surrounded by the outer region;
• and
• an inner region that does not extend upward as far as the intermediate region, the inner region being adjacent to and surrounded by the intermediate region;
• wherein, when the container is an upper container that is stacked upon an identical lower container:
• the upper container is entirely supported by the intermediate region of the lower container;
• a gap space is formed between the bottom of the base of the upper container and the inner region of the lid of the lower container;
• and
• wherein a central region of the lid includes a central upwardly projected portion or a central downwardly projected portion;
• wherein the upper container is supported entirely by an apex ridge of the intermediate region of the lower container.