Abstract: A kit for sealing an open container includes a utensil and a lid. The lid includes a lid body, a sealing mechanism, and at least one holding lug. The sealing mechanism is positioned on an inner face of the lid body, and is configured to sealingly engage an opening of a container to enable the lid to seal the opening of the container. The at least one holding lug extends radially outward from the lid body, and has a through hole extending along a direction perpendicular to the inner face. The through hole is configured to mount the utensil on the lid when the lid is engaged with a container.