Kitchen · Bakeware
Can I Use Pyrex in an Oven?
Something else…
What else can go in an oven?
Something else…
Other answers for Pyrex
- Air FryerNO
- OvenYES, WITH LIMITS
- MicrowaveYES, WITH LIMITS
YES, WITH LIMITS
Safe only under specific conditions. The conditions are the answer.
Yes, with limits. Current U.S. Pyrex glass bakeware can be used in a fully preheated conventional or convection oven when the piece is undamaged and its instructions allow oven use. Keep plastic and wood lids out, and do not use the dish under a broiler, in a toaster or countertop oven, over direct heat, or through a sudden temperature change.
Compatibility summary
- Can I use them together?Only under conditions
- Main riskGlass shattering
- What gets damagedThe Pyrex dish
- InsteadOven-rated metal bakeware
The conditions
Fine to do
- Use an undamaged Pyrex glass dish whose product instructions approve oven use.
- Fully preheat the conventional or convection oven before putting the dish inside.
- Add enough liquid to cover the dish bottom before cooking food that may release liquid.
- Handle the hot dish with dry potholders and place it on a cooling rack, dry cloth, dry potholder, or wood or cork trivet.
Never do
- Do not place Pyrex in the oven while the oven is preheating.
- Do not use it under a broiler, on a stovetop or grill, or in a toaster or countertop oven.
- Do not put plastic or wood Pyrex lids in a conventional or convection oven.
- Do not transfer a frozen dish directly to a hot oven, add liquid to hot glass, or place hot glass on a cool or wet surface.
- Do not use a piece that is chipped, cracked, broken, or severely scratched.
Why those conditions exist
Temperature gradients stress glass
Glass expands when heated and contracts when cooled. Direct element exposure, cold liquid on hot glass, or contact with a cool wet surface can make parts of the dish change temperature at different rates. The resulting stress can fracture the glass.
Existing flaws can spread
Chips, cracks, and severe scratches leave weak points where a fracture can start. Heat and handling stress can extend the flaw until the dish breaks.
The Pyrex name
Pyrex is a brand, and the logo appears on more than one kind of product. Current U.S. Pyrex glass bakeware is approved for preheated conventional and convection ovens; plastic or wood lids, canisters, and some accessories have different rules.
The common mistake is reading “oven-safe” as permission for any heated appliance or oven mode. Pyrex excludes broilers, toaster and countertop ovens, and other direct-heat setups because they can heat the glass unevenly.
Sources
- Pyrex — Product Warranties Safety and Usage
- Pyrex — Frequently Asked Questions
- Pyrex — Pyrex Deep 4-piece Baking Dish Set with Sage Lids
- National Institute of Standards and Technology — Fractography of Ceramics and Glasses, Third Edition
Reviewed 1 September 2026 · Reviewed current U.S. Pyrex use-and-care, FAQ, and product guidance, plus NIST material on thermal shock and glass fracture.