1. Glass is high borosilicate glass.
2. Glass can heat the high temperature to 400℃ and heat the cold temperature to -40℃.
3. Glass have a good thermal shock for 120℃.
4. Glass is safe for oven,microwave,dishwasher,freezer.can pass LFGB.
5. Lid is made by PP&silicone, safe for food , BPA free, recyclable.