Borosilicate dutch oven is magic!

[JKalchik]

I'd suspect that the old PYREX homewares might have been considered safe for burner use. Pyrex branded products (note the case difference) are not, based on the Pyrex FAQ linked above.

Very interesting discussion. Personally, I've never had a piece of glassware shatter due to thermal shock. Yes, I have shattered glassware, but due to physical impact. I'm also a bit militant about not scratching ceramics with either utensils or cleaning.

I do have a set of Corning Visionware, but it's in the box in the basement. It's yet another ceramic, and was explicitly advertised for oven, freezer, refrigerator or stovetop use. I just don't really care for how it cooks. I keep it around as a just in case use.

 

[Doug D]

Only Pyrex Flameware (aluminosilicate glass and long discontinued) was suitable for stovetop use. US consumer clear glass Pyrex hasn't been made from borosilicate since the late 1940s, around the same time as the introduction of painted and decorated Pyrex opalware. Old Pyrex catalogs from the borosilicate days specify essentially the same usage and care guidelines and warnings as modern consumer (soda lime glass) Pyrex. Pyrex licensees elsewhere in the world continue to use borosilicate for their clear Pyrex branded kitchen glassware. No Pyrex has ever been touted as being non-stick. The case in which the word Pyrex is illustrated has no bearing on borosilicate vs. soda lime.