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

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Book Lover Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-19-05 08:57 PM
Original message
How hot can I set my oven so my pyrex won't shatter?
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.
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Lars39 Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-19-05 08:59 PM
Response to Original message
1. I'd say 325.
Edited on Sun Jun-19-05 08:59 PM by Lars39
You can usually set the oven temp 25 degrees lower with glassware.
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Book Lover Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-19-05 09:00 PM
Response to Reply #1
2. Thanks!
That should brown the cheese and breadcrumbs pretty well :-)
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Rick Myers Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-19-05 09:00 PM
Response to Original message
3. Pyrex is good to 510 degrees F
Most ovens don't get that hot.
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Book Lover Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-19-05 09:02 PM
Response to Reply #3
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...
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DS1 Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-19-05 09:02 PM
Response to Original message
5. wow
Softening Point 821 C
Annealing Point 560 C
Strain Point 510 C
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Book Lover Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-19-05 09:04 PM
Response to Reply #5
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...
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mike_c Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-19-05 09:03 PM
Response to Original message
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 500C (for short periods of time only). Special care should be taken at temperatures above 150C 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...
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Book Lover Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-19-05 09:06 PM
Response to Reply #6
8. Not *this* oven, that's for sure
:-) Though I wonder if my father's demi-professional oven could reach it...
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mike_c Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-19-05 09:15 PM
Response to Reply #8
11. nope-- that's approaching kiln temperatures....
eom
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Book Lover Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-19-05 09:56 PM
Response to Reply #11
15. My face is red
I didn't notice you were quoting a celcius temp... :blush:
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IChing Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-19-05 09:07 PM
Response to Reply #6
9. 932 F damn that's hot = 500 C
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Nikia Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-19-05 09:18 PM
Response to Reply #6
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.
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Nikia Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-19-05 09:14 PM
Response to Original message
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.
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KoKo Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-19-05 09:15 PM
Response to Original message
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:
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Left Is Write Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-19-05 09:19 PM
Response to Reply #12
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.
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AllyCat Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-19-05 10:16 PM
Response to Original message
16. From personal experience (as a teenager) I can tell you not to
put it in the broiler. :dunce:
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Book Lover Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jun-19-05 10:23 PM
Response to Reply #16
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 :-)
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