Features 100% Food GradeIdeal for Cooking in MicrowaveVentilationWithstands temperatures from -20 ℃ to +110 ℃BPA FREEFreezer/refrigerator safe Materials PP (Polypropylene)Transperent PP (Random) Instruction to Use Avoid Cleaning with sharp utensils which may damage surface Cautions Do not use in Grilling /OTG/Gas Stove,Convection or combination mode of microwave oven. Always use in microwave mode only.do not use for making popcorn/peanuts. Usage Ideal for cooking in microwaveMicrowave Dishwasher Safe