Non-toxic refrigerant gel eliminates the need for ice (enclosed in bag to prevent leaks if shell becomes damaged) Cold food pan has patent-pending color change technology to quickly make workers aware that temperatures are no longer safe Holds temperature at or below 41°F for 6 to 8 hours (varies due to ambient room temp) NSF approved for hassle-free inspection and food-safe certified Acrylic lid can be purchased to maintain fresh product longer (sold separately, item 45689) Carlisle® Coldmaster® Coolcheck™ Food Pan, 12-3/4 inchesL x 10-3/8 inchesW x 6 inchesH, White