On Mar 14, 2:14*am, "john south" > wrote:
> After preparing and partially boiling vegetables and meat, they were then
> put in a large glass bowl and it was placed on top of a gas hob to bring
> them to
> the boil. That was prior to placing it in the oven to make an oven
> casserole.

> My question is not whether this was really an oven proofed glass dish, since
> i guess we will never know for sure.
>
> But is the wife right in saying this is a very *risky* procedure, putting a
> pyrex glass bowl over a gas ring to boil things? *Even though i always start
> on
> the minimum heat so as to minimize any strains on the glass. * * So would
> you think that this is safe to do, or not? * *Thanks.

The heat stress from applying a flame to a glass bowl is much higher
because the high temperature is much higher: 3500F for a methane
flame vs 500 at most for the oven.

Pyrex made a "Visions" line of glass saucepans -- try to find one of
those.