Patent attributes
A refreezable container for storage of perishable and/or temperature-sensitive items is described herein. A bottom surface, contiguous with one or more side surfaces is provided, each surface having an interior cavity at least partially filled with refreezable material, usable to retain contents within the container at a temperature less than ambient temperature. The bottom surface includes a lower groove therein. The side surfaces include a lip adapted for secure engagement for an upper object, which can include a top cover having a complementary groove, or the lower groove of an adjacent refreezable container, allowing multiple containers, with or without top covers, to be nested for storage or transport, and allowing multiple covered containers, or top covers independent of containers, to be stacked and nested.