A liquid warming grommet assembly (400, 500) maintains liquids or other materials in a vessel (406) at a desired temperature. The grommet assembly (400, 500) includes a grommet (408) receivable within an aperture in a work surface (404). A heating element (440) is receivable within a casing (410) of the grommet (408), and an upper warmer plate (444) is positioned at the upper portion of the heating element (440) and is substantially flush with the work surface (404).