You want to make sure you're using PYREX, not pyrex. They're different![1]
[1]: https://www.allrecipes.com/article/what-is-the-difference-be...
Unreal that this very misleading branding was allowed to continue.
Re:Generation Junk
by mitthrowaway2 on Wednesday December 27, 2023 @10:47PM
(#38789798)
The biggest difference is that the latter is the only one you'll find in stores, at least in north america.
I somehow ran across this trivia twice today. It stings; Pyrex was a brand I still trusted.
The other thread mentioned that they license rights to use "pyrex" (vs "Pyrex") to pretty much anyone, but the capital-P brand should still be the OG company. Maybe that was relevant in your case.
Re:Generation Junk
by orangepurple on Thursday December 28, 2023 @01:10AM
(#38790594)
At this point I don't trust it if it doesn't at least explictly claim to be made with borosilicates. There are such suspicious items for sale on Amazon and I trust them more than "pyrex."
Re:Generation Junk
by idontwantthis on Wednesday December 27, 2023 @10:36PM
(#38789716)
Do you know if there is another borosilicate glass cookware company now?
I don't understand why anyone would do this even with real borosilicate glass. It is unreasonable to expect glass to survive with something massive and hot on one side and something massive and cold on the other side. Even flawless pyrex will break with temperature differentials above 300F.
Real Pyrex really ought to survive a 300F (150C) temperature difference.
Noteworthy example. Current Pyrex-branded kitchenware is no longer borosilicate glass.
I shattered a Pyrex casserole dish with what I guess was probably thermal shock, by moving it out of the oven, into a stainless steel sink.