A gasket for an insulating container may include a stem, wherein the stem further includes a plurality of prongs, and wherein the prongs are configured to be inserted into a recess in an underside of an insulating container lid, a first side, wherein the first side is connected to the stem, and wherein the first side is positioned substantially perpendicular to the stem, a second side, wherein the second side is configured to extend from the first side at an angle of 30-60 degrees, and wherein the first side and the second side form a V-shaped extension, and at least one venting hole, wherein the venting hole extends from an outside edge of a gasket wall to an interior gasket wall, and wherein the venting hole provides a conduit to an interior void of the insulating container.