In one embodiment of a container protector the container protector comprises two opposing side skirts, two opposing end skirts, and a interior lip connected to both side skirts and end skirts. The container protector may also include one or more handle extension to facilitate use with a container having one or more handles. The container protector is designed to sealing fit around the top periphery of a container with the interior lip extending upward to prevent material within the container from flowing outward therefrom during transitions. Such transitions may be caused by heating, transportation, or other disturbances. The precise dimensions of the container protector will vary from one embodiment to the next, and the container protector may take any shape depending on the container for which it is designed.