Originally Posted by
platyhiker
Pyrex glass baking ware used to made with borosilicate; it's now made with soda-lime, which makes it more prone to breaking from the stress of thermal shocks, but is cheaper to manufacture. Interestingly, the borosilicate version is available in Europe. I'm surprised that they don't at least offer the *option* of buying the borosilicate version in the USA
Looks like pyrex brand in the US was bought by one entity and Pyrex the original is owned by a European company. They could sell borosilicate class in the US but can't call it Pyrex.
Last edited by mkc; 10-18-2021 at 02:29 PM.