How hot can I set my oven so my pyrex won't shatter?

[Book Lover]

Of course, www.corning.com is unnavigable... anyone know how hot my 1 3/4 cup pyrex bowl can go to in the oven? I'm trying to bake some mac & cheese. Many thanks.

[Lars39]

1. I'd say 325.

You can usually set the oven temp 25 degrees lower with glassware.

[Book Lover]

2. Thanks!

That should brown the cheese and breadcrumbs pretty well :-)

[Rick Myers]

3. Pyrex is good to 510 degrees F

Most ovens don't get that hot.

[Book Lover]

4. And that would overdo the m&c pretty quickly

Thanks! Corning's site has technical specs, but only for sheet Pyrex (that I could find) and so I wasn't sure if the formulations varied...

[DS1]

5. wow

Softening Point 821° C
Annealing Point 560° C
Strain Point 510° C

[Book Lover]

7. Yeah, pretty cool

Like I said above, I wasn't sure if kitchen Pyrex was made to lower specs, but I am beginning to think Pyrex is Pyrex...

[mike_c]

6. 500 C-- your oven doesn't get that hot....

Temperature Resistance
Pyrex® borosilicate glass has excellent thermal properties due to its high softening point and low coefficient of expansion (3.3 x 10-6 K-1). The maximum recommended working temperature for glassware manufactured from Pyrex® borosilicate glass is 500°C (for short periods of time only). Special care should be taken at temperatures above 150°C to ensure that both heating and cooling are achieved in a slow and uniform manner (see "Care and Maintenance of Laboratory Glassware" section).

http://www.barloworld-scientific.com/internet/BibbySite.nsf/body/EWYN5EWB5WTALN6CGEJR

[Book Lover]

8. Not *this* oven, that's for sure

:-) Though I wonder if my father's demi-professional oven could reach it...

[mike_c]

11. nope-- that's approaching kiln temperatures....

eom

[Book Lover]

15. My face is red

I didn't notice you were quoting a celcius temp... :blush:

[IChing]

9. 932 F damn that's hot = 500 C

[Nikia]

13. It does mention caution though above 150 C

That is 300 F. I think though that it should be fine at slightly hotter temperatures in the oven as I mentioned in my other post. Just be careful when taking it out and don't do anything stupid like put it in the freezer right away.

[Nikia]

10. I think that pyrex is safe on an oven rack

Ovens tend to heat evenly. It is not safe to put on a burner or other direct heat. On a college track trip, I saw a pyrex bowl shatter into literally hundreds of little pieces when my trip roommate tried to cook macaroni and cheese on the stove top in a pyrex bowl. The key is having it all the same temperature, and not having one spot hot and an adjacent spot cold.

[KoKo]

12. All my Pyrex said not over 450 degrees. I've never pushed it that high

and tried to broil in it though, because none of mine says you can broil. I use metal for broiling. I've stayed at around 425 and not had any problem with my pyrex in the oven. I had one explode in the Microwave once though. It was a horrible mess to clean up with shattered glass all over he inside.

My booklets say 450 degrees...just pulled one out. But, my pyrex is over five years old. :shrug:

[Left Is Write]

14. I have used fifty-year-old Pyrex at 400 with no problems at all.

In fact, I did it tonight with my blueberry cobbler.

[AllyCat]

16. From personal experience (as a teenager) I can tell you not to

put it in the broiler. :dunce:

[Book Lover]

17. *grin* My experience? Once

I put an empty pyrex baking dish on a back burner, not realizing that that was the exhaust burner. I was warming up the oven and, yep, it shattered. I've been a smidge gunshy about using and checking specs for kitchenware ever since :-)