Pyrex Cookware Temperatures

Originally produced by Corning Glass Works in 1915 in its Charleroi, Pennsylvania plant, Pyrex cookware is composed of heat-tempered, lead-free, soda lime glass. A casserole dish was the first piece of Pyrex cookware ever produced.

Hot

• Pyrex cookware allows you to cook, bake and reheat food in a microwave oven, as well as in conventional or convection ovens. Pyrex recommends avoiding an open flame or other direct heat source when using the cookware to prevent shattering the glass. Pyrex cookware can handle temperatures up to 500 degrees Fahrenheit.

Cold

• You can safely refrigerate Pyrex cookware to keep food fresh. You can also freeze Pyrex cookware at the standard domestic freezer settings of -15 degrees without shattering the glass.

Hot and Cold

• Do not expose Pyrex dishes to sudden temperature changes or they may shatter. Do not put cold water in a hot dish or place a hot dish in cold water or on a cold surface. When taking out a refrigerated Pyrex dish, do not put it in a heated oven or hot water until it has reached room temperature.