Modern CorningWare is generally oven safe, but the exact temperature limit and rules depend on the specific line and markings on the bottom of your dish. Most current CorningWare labeled “oven safe” can go into a conventional or convection oven up to about 450–500°F (230–260°C), while glass lids are usually limited to lower temperatures around 350°F.
Check your specific piece
- Turn the dish over and look for wording such as “oven safe,” “microwave and oven safe,” or a printed temperature range (for example, “-20°F to 500°F”).
- If there is no clear oven‑safe mark (especially on older/vintage pieces), treat it cautiously and avoid high heat or direct broiler use.
Typical temperature limits
- Many glass‑ceramic (Pyroceram) CorningWare lines (Classic/French White and similar) are rated roughly 450–500°F; the brand itself often recommends using them mainly in the 350–450°F range for baking.
- Stoneware-style CorningWare often has a lower recommended maximum, around 350–400°F, so check the bottom or packaging.
Safe use tips
- Avoid sudden temperature shocks: do not move a hot dish onto a cold or wet surface, and do not put a fridge‑cold dish into a fully preheated very hot oven.
- Do not use CorningWare under a broiler, on a stovetop burner, grill, or with a microwave browning element unless your specific product explicitly says it is safe for that use.
Quick reference table
CorningWare type / part| Typical safe oven use*
---|---
Pyroceram / French White| Conventional or convection oven up to about
450–500°F, no broiler. 12
Stoneware CorningWare| Oven use usually up to about 350–400°F. 1
Glass lids| Often safe only to about 350°F, not for broiling. 15
*Always follow the exact wording and temperature printed on your own piece; that overrides these general ranges.
