The Full Circle Home Creo Smartglass Pie Pan is heat resistant to 450ºF/232ºC and highly resistant to thermal shock. SmartGlass means a unique combination of tempered borosilicate glass interior and ceramic exterior. The nonreactive materials ensure consistent cooking, unlike most metal bakeware. This 9" Pie Pan is oven, microwave, freezer, and dishwasher safe. The plain-edge works to prevent burnt crusts; interior rivets allow for easy press-in crust fluting.