Question: are pyrex custard cups oven safe?
Answer: Pyrex glass will not absorb or leach flavors or odors, and it cleans up easily either by hand or in the dishwasher. Since 1915, Corning Pyrex cookware has been a vital part of every kitchen, and because it is safe in the oven, freezer, and microwave, it is even more versatile today than when it was first introduced.