They changed the formula for Pyrex glass many years ago and the new formula is inferior to the old one.
Somehow I doubt the current incarnation of these companies has much at all to do with their origin.
Somehow I doubt the current incarnation of these companies has much at all to do with their origin.
The origin of Pyrex is Corning, the Gorilla Glass maker. They divested Pyrex because they've got tired of dealing with the consumer market and wanted to focus on B2B sales.
The US market was acquired by (as shown) eager to make a quick buck on brand recognition. The European market was acquired by a different company which still manufactures borosilicate cookware to this day (and are not affected by this bankruptcy).
Then Corning somehow decided that it was the name of a _brand_, and they could use whatever inferior material they wanted, and if you put it in those same situations it would explode and cover your kitchen/lab in glass shards.
How that was even legal, I will never understand.
Aspirin is still a trademark of Bayer in Canada; if they want to switch to ibuprofen instead of aspirin as the active ingredient, and sell it as Aspirin, they could. Similarly, if Kimberley-Clark decides to start selling sandpaper and call them Kleenex, they could.
If a trademark becomes fully generic it can be ruled so by a court, at which point the trademark protection is lost. Aspirin is like that in the US. But that is pretty rare these days.
Selling soda-lime glass as "pyrex" has gotten plenty of people injured, but evidently none severely enough to sue Corning's pants off.
I remember reading the Amazon reviews and the amount of 1 star stories about how a plate landed them in the ER was concerning.
I bought some vintage Corelle at a private sale and it seems different to me at least but maybe I am buying the wrong contemporary stuff.
I think they're all (even the vintage ones) subject to risk of shattering into pointy shards if they break, though. They're not magic. :)
For me, they're 100% shatterproof until they're not. You can drop them over and over again, and never notice any visible change. But then when they finally do shatter, it's almost like an explosion.
I think this is because they're built from a pressurized metal/glass layered composite. Very sturdy until enough internal damage builds up.
That’s pretty funny (and awesome)
https://www.nytimes.com/wirecutter/blog/tempered-vs-borosili...
Even consumer reports is gamed; they test toilets by flushing golfballs and whatnot and if you talk to plumbers, they recommend different brands.