The stainless steel hinged cover and insulated body: ensures fresh and warm rice (up to 150°F) for up to about 10 hours. The cover lid seals on to a snug fitting removable coated aluminum pot. -Automatic temperature control: Always keeps rice warm at optimal temperature using temperature sensor switch TRS. -Full warming: Improved warming by using superior insulation at bottom, sides, top, and reduces electricity costs -NSF ETL Listed *Note : Not made to reheating cold food. Note: please contact us via amazon messages if you have any questions regarding this unit.