OXO Good Grips Glass Bowls are made of oven-, freezer- and microwave-safe borosilicate and can be heated from 32F (0C) to 450F (232C) without shattering. From mise en place to serving yogurt parfait, youll be bowled over by what you can do with this set. The glass wont absorb odors or stains, so they can handle anything you throw at them, and the lids allow for convenient stacking in the fridge. Ready to wrap up? These Bowls nest for simple storage.