1) resistant to high temperature,corrosion and scratch 2)safe in microwave oven,oven,dish washer and freezer 3)FDA,LFGB 1)material : borosilicate glass; expansion coefficient : 3.8*10-7k resistant to heat up to 800celcius degrees,corrosion and scratch.2) can be used in microwave oven ,oven ,dish washer and freezer.3) have passed FDA, LFGB4) can be used as a cover for the casserole as well as a ...