Abstract: A lid for a container is provided. The lid includes a perimeter sidewall having a lower inwardly turned flange and a bottom panel secured to the inwardly turned flange. The lid has a frustoconical shape created by a taper angle of the perimeter sidewall. The perimeter sidewall may have at taper angle that is equal to, greater than, or less than a taper angle of the container into which the lid is inserted. The lid may create an interference fit between the perimeter sidewall of the lid and the sidewall of the container along all or a portion of the height of the perimeter sidewall to secure the lid to the container after the lid is inserted into the upper end opening of the container.