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PYREX vs. Pyrex: What's the Difference?

PYREX vs. Pyrex: What's the Difference?

3 comments

·September 20, 2025
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KaiserPro

In the UK PYREX cookware is always borosilicate. So it was a bit confusing to hear americans say how shit their "pyrex" glassware is.

Mind you, most of our oven proof glass is decent enough to be put in the oven and then dumped on a cold surface.

Mayzie

Relevant video from Ann Reardon's How To Cook That about exploding Pyrex (and the difference between all capitals and all lowercase): https://www.youtube.com/watch?v=YVbkDAw4aJs

Turned out that distinction isn't too reliable when it comes to determining whether a product used soda lime glass or borosilicate glass instead.

locallost

Funny to me because just last week I week I wanted to buy a glass jug, and as a natural born procrastinator I just had to google products from Pyrex. Apparently the European products are still made of borosilicate glass in France. In the end I bought one from Anchor Hocking because it has markings etched in and a few people complain their Pyrex markings disappear. I did buy some dishes from Pyrex and they say borosilicate glass on the packaging (made in France).