Ultimately, vintage Pyrex, made from borosilicate glass, is generally considered safe to use in the oven. Its robust composition makes it highly resistant to temperature changes and less prone to shattering, even when subjected to the high temperatures of an oven.
Pyrex bowls (both old and new) are safe to use in your oven -- and microwave -- as long as you avoid dramatic, sudden temperature changes. Stovetop (either gas or electric) use is not safe.
Yes, Pyrex dishes are generally oven-safe. They are made from tempered glass, which allows them to withstand high temperatures typically used in ovens. However, there are a few important considerations: Temperature Limits: Pyrex is typically safe for temperatures up to 425°F (218°C).
Vintage Pyrex can go straight from freezer to oven, while modern Pyrex must be brought at least to refrigerator temperature beforehand. Vintage Pyrex can also handle the rising, shifting temperature of a preheating oven, while modern Pyrex glass should only go into a stable, preheated oven.
Broken or chipped Pyrex should be disposed of carefully in the waste bin.
Ultimately, vintage Pyrex, made from borosilicate glass, is generally considered safe to use in the oven. Its robust composition makes it highly resistant to temperature changes and less prone to shattering, even when subjected to the high temperatures of an oven.
As long as you follow the same guidelines above, vintage Pyrex is A-OK to go in the oven and can be used in oven temperatures up to 425ºF (and skip the broiler). There is one caveat to using your vintage Pyrex, though: Do not use any vintage dishes that are chipped or cracked—in the oven or otherwise.
Can Pyrex Go In the Oven? Yes, Pyrex can go in the oven. You can use Pyrex glass cookware to cook, bake, warm or reheat food in pre-heated conventional and convection ovens.
What Makes Pyrex Special. "Pyrex continues to hold its value because most of us associate it with memories of family and holiday gatherings and memories from their childhood," Wright says. "The vintage designs and patterns of Pyrex evoke a nostalgia, which adds to its value for collectors.
The next time you go to cook dinner in a Pyrex pan, take a look at the labeling. Cookware with lowercase logos are usually made of soda-lime glass and should not be heated up in the oven or microwave to minimize risk of them breaking.
Always preheat the oven first before placing the bakeware inside it. According to Pyrex's safety and usage instructions, “While the glass is designed for temperatures typically used in baking, it can break when exposed to the direct heat element while the oven is preheating.”
Pyrex made with soda-lime can't handle drastic temperature changes since it isn't resistant to thermal shock. This phenomenon is the result of a material going from two different temperature extremes so rapidly that it is unable to expand at a steady rate, which in turn causes it to crack.
Brittle materials like glass are much more vulnerable to thermal shock, because they break when their molecules quickly expand under heat or contract under cold.
Vintage CorningWare is still safe to use as long as it's not cracked or chipped.
Unfortunately, if your Pyrex bakeware and containers are no longer usable, they'll need to be disposed of in your landfill bin.
Amateur or passionate pastry chef, our baking mould set in Pyrex® glass is the essential tool for successful cakes and desserts. Whether you are preparing a moist chocolate cake, a creamy cheesecake or a seasonal fruit tart, it will accompany you in all your baking adventures.
Patterned Pyrex—such as the 1956 Pink Daisy or the 1983 Colonial Mist colorways—tend to be valuable as a collector's item. Other popular patterns include the 1957 Butterprint, which features an Amish couple and their crops, and has been valued at a few hundred dollars.
If it's all caps “PYREX,” it's vintage, made of borosilicate. If it's lower case “pyrex,” it's new, and it's soda lime. (In Europe, Pyrex is still made of borosilicate. So these recommendations only apply to Pyrex in the United States.)
Corning divested itself of the Corning Consumer Products Company (now known as Corelle Brands) in 1998 and production of consumer Pyrex products went with it. Its previous licensing of the name to Newell Cookware Europe remained in effect.
To know whether or not your glass cookware is oven safe, look on the bottom of the dish for a Pyrex symbol or other notation that the glass is safe to put into the oven. If you cannot find a definitive marking, consult the manufacturer.
If the logo is in upper case lettering, PYREX, it's most likely made of borosilicate, and thus safer. The lowercase lettering is most likely made of soda-lime glass, so take extra care after any high-heat cooking.
Only glass with an oven-safe label should be placed in your oven. Avoid high heat: Most glassware manufacturers suggest using temperatures no higher than 350°F. However, some companies have a higher heat range allowance, which is why it is important to check with the manufacturer before use.
The brand switched its formula in the 1950s to the soda lime glass, but recently started reintroducing borosilicate glass. Although both glasses are heat-resistant, borosilicate glass does better with extreme temperatures, making the vintage Pyrex pieces highly coveted by collectors.
A safer way to use glass cookware is to place the glass on a metal sheetpan and then put it in the oven. Then when you are done you can just lift the sheetpan and pyrex together and put it down where you want. This way, the sheet pan will be between any surface and the pyrex.
Many modern Pyrex items will denote whether they are safe for the microwave on the bottom of the item. But we have used vintage Pyrex in the microwave many times (I can't count the number of times I've microwaved a Diagonal Handle Pyrex cup filled with coffee).