High quality food grade PP materialHigh temperature resistant food grade PP material, food contact is safer, durable and not deformedSteamer layer honeycomb holesThe honeycomb-shaped fine small hole design, good breathability, food steaming faster and easierRefrigerating and heatingCold resistance and high temperature resistance (-20°C- 120°C) Both refrigerator preservation and microwave oven heating are availableEasy and fast operation, soft and sweet foodThe pot can be used on all cooking surfaces including induction cooktop , electric stove tops , portable stoves , gas burners , glass and ceramic.