These baking dishes are made of durable borosilicate glass, which can withstand extreme temperature changes without breaking or shattering. This means the dish can go directly from the refrigerator or freezer—no need to spend time thawing—to a preheated oven without breaking. It has generous handles, so it’s easy to grip and move, it won’t stain or absorb odors, and it’s easy to clean. . Microwave-safe, dishwasher-safe, freezer-safe. Not intended for use under a broiler.