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Hugin

(37,260 posts)

48. My anecdotal experiences with tempered soda-lime and borosilicate glass "Pyrex" in ovens.

Reply to mahatmakanejeeves (Original post)

Mon Mar 18, 2019, 11:54 PM

Mar 2019

If I'm at an oven temperature of over 300 F...

Soda-lime has broken every single time... Every single time. To the point I have only one dish of that type left in the house. They all broke.

I have several borosilicate glass dishes I have used daily for around 30 years in ovens at or above that temperature and until recently... They were all unbroken.
One finally shattered rather explosively as I was taking my weekly fish dinner out of a 400 F oven. I believe it's failure may have been due to scratches from it's last trip through the dishwasher combined with an unusually cold and humid house I was suddenly removing the dish into.

After, that incident I have only used my white "Corning Ware" dishes in a hot oven for cooking fish and meat. I've never had one of those break. Although, if dropped from a counter height onto a brick floor, I'm guessing they would break. I believe all of the lids for these dishes are borosilicate. None have ever broken.

That said, I believe all three would be safe to use in a microwave due to the fact the temperature of the heated food and liquid they contain is rarely much above 200 F.

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The Pyrex Glass Controversy That Just Won't Die [View all] mahatmakanejeeves Mar 2019 OP

thanks for that information rampartc Mar 2019 #1

Thanks safeinOhio Mar 2019 #2

I always keep an eye peeled at yard sales for Corningware. mahatmakanejeeves Mar 2019 #8

Have some 1950s Hilton International plates made by Corning JCMach1 Mar 2019 #42

I dropped large Pyrex bowl on vinyl flooring and it shattered into million shards wishstar Mar 2019 #3

the way that stuff shatters is very memorable. dixiegrrrrl Mar 2019 #13

This is typical of tempered glass localroger Mar 2019 #22

we need a protest march sign that says Bring Back Borosilicate paulkienitz Mar 2019 #24

if the borosilicate glass (Pyrex) KT2000 Mar 2019 #35

No, the whole point of borosilicate is no stress localroger Mar 2019 #37

PS both borosilicate and tempered glass have been marketed as Pyrex. /nt localroger Mar 2019 #38

thank you - KT2000 Mar 2019 #45

Same thing happened to me. Cracklin Charlie Mar 2019 #26

That happened to me three times and they were memorable BigmanPigman Mar 2019 #28

You will be finding those shards for the next decade. EllieBC Mar 2019 #40

The old stuff feels different to me spinbaby Mar 2019 #4

from LOLcats keithbvadu2 Mar 2019 #5

In one of my more brain-dead moments.... WeekiWater Mar 2019 #6

That's terrifying. Maru Kitteh Mar 2019 #9

Holy heck hibbing Mar 2019 #18

Great matt819 Mar 2019 #7

Same here. I own a Pyrex baking dish. Blue_true Mar 2019 #23

I have a huge collection of Pyrex. About 2/3 is from the 20s-50s sinkingfeeling Mar 2019 #10

tempered glass is waiting to be triggered Hermit-The-Prog Mar 2019 #11

I have had several glass coffee maker carafes shatter too, not just Pyrexes wishstar Mar 2019 #12

I have several sets of Visions cookware Marthe48 Mar 2019 #14

We had two Visions sauce pans happybird Mar 2019 #19

If yours cracked like that, they were the old borosilicate ones localroger Mar 2019 #39

That makes sense happybird Mar 2019 #41

My daughter gave me a set of Visions Marthe48 Mar 2019 #57

I saw a couple of amber Visions saucepans in a thrift store a few years back. blogslut Mar 2019 #53

I buy them every time. xmas74 Mar 2019 #56

Yikes! Honeycombe8 Mar 2019 #15

I use my Corningware and Pyrexware frequently and I've never had one break FakeNoose Mar 2019 #16

I have a Pyrex percolator: Kingofalldems Mar 2019 #17

I have two of those! Kali Mar 2019 #30

We forgot a Pyrex baking pan on the roof of the car once. rickford66 Mar 2019 #20

vintage large lasagna pans in certain desirable colors are worth stupid money. uncle ray Mar 2019 #44

Thou shalt not covet my Pyrex hand-me-downs rickford66 Mar 2019 #46

fortunately they're nearly indestructable. uncle ray Mar 2019 #47

estate sales are great for this stuff. all kinds of vintage kitchen goodies. pansypoo53219 Mar 2019 #21

yes! Kali Mar 2019 #31

Amen eleny Mar 2019 #34

kitchen towels suck Demovictory9 Mar 2019 #50

Borosilicate is superior to tempered soda lime for thermal shock - harumph Mar 2019 #25

There are other options, too. Simax and OXO use borosilicate kcr Mar 2019 #54

In 1997, I was pregnant with my first child. I was 20 assumed it was fine and made spaghetti dewsgirl Mar 2019 #27

Interesting! elleng Mar 2019 #29

okay here's the story from just like 2 weeks ago TalenaGor Mar 2019 #32

Does he take Ambien or anything chemically like it? Cause if so, that's what it is ... mr_lebowski Mar 2019 #52

no sleeping pills but they do make him tired... TalenaGor Mar 2019 #55

Lab Glass Is Always Borosilicate ProfessorGAC Mar 2019 #33

Arc International makes amazing glasses dalton99a Mar 2019 #36

KnR for Pyrex Hekate Mar 2019 #43

My anecdotal experiences with tempered soda-lime and borosilicate glass "Pyrex" in ovens. Hugin Mar 2019 #48

I exploded two of them! putting a hot one straight from oven into sink with cold water. Demovictory9 Mar 2019 #49

I bet your second experience is the most common reason for breakage. Hugin Mar 2019 #51