On Sep 11, 11:59*pm, Mark Thorson > wrote:
> Jerry Avins wrote:
>
> > That's because what's called Pyrex nowadays isn't what Corning called
> > Pyrex when they first made it. Real Pyrex (borosilicate glass) as used
> > in laboratory glassware can be heated directly in a flame, and on an
> > exposed-coil electric stovetop with just a thin wire spacer. I have a
> > saucepan and skillet (both Corning Pyrex) that have been used over
> > direct flame for over 50 years. No explosions.
>
> Just a lot of stuck food.

I fry eggs with no problem. Same as cast iron.

Jerry