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Because of the shattering dangers of the apparently inferior lime glass that Pyrex uses for manufacturing in the U.S. as exposed by Consumer Reports, I'd like to replace my Pyrex with borosilicate bakeware. Apparently Pyrex used to manufacture their bakeware with borosilicate until about 10-15 years ago in the U.S..

I thought I found a manufacturer (Marinex) that used borosilicate, and though they advertise it as such, based on this report, it turns out that the materials used by Marinex still may not be as safe as "true" borosilicate bakeware.

How can I purchase true (new) borosilicate bakeware from the United States? It doesn't have to be manufactured in the U.S., and I'm open to ordering it from foreign stores that export to the U.S.. Specifically, I'm looking for 13x9 and 11x7 rectangular, and 8x8 square baking dishes.

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Just a quick note in general: I'm not even sure Pyrex sold in Europe is still borosilicate. The name was sold a couple of years ago. "Pyrex" is possibly not oven-safe. Just make sure it's borosilicate. –  Mien Mar 10 '13 at 16:10
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Good luck finding any. Boron is poisonous which means there's a very high waste disposal cost, so borosilicate is generally only used for two niche markets now: lab equipment, and bongs. If you don't want to use metal bakeware then you might have better luck searching for some vintage Corningware or Glasbake/glassbake/flamex on eBay or in your local thrift stores - pretty much the same thermal characteristics as the old boro, just looks nicer. –  Aaronut Mar 10 '13 at 16:40
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@JeffAxelrod Arc International owns the license for Pyrex in Europe and apparently they are still making it there: amazon.co.uk/Pyrex-Borosilicate-Square-Roaster-21x21cm/dp/… it may be a matter of time before a US alternative shows up. In the mean time, if you make sure your glassware doesn't go through rapid temperature change, chances of the shatter is much less. –  MandoMando Mar 10 '13 at 17:14
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@JeffAxelrod : I can add to the stories -- tried making a yorkshire pudding in a brand new Pyrex dish, which I've done for years in an older one ... and it exploded from just heating it empty. (it's possible that something might've dripped above, I guess, and as it was its first use, it's possible that it had a defect) –  Joe Mar 11 '13 at 13:08
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May want to take a look the comparison at Anchor Hocking of borosilicate vs. tempered lime-soda. According to them, lime-soda glass is mechanically stronger and more temperature shock resistant . Also, it breaks into smaller, less dangerous shards. anchorhocking.com/Bakeware_Facts.html#BORSILICATE –  nullforce May 26 '13 at 4:00
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2 Answers

I believe the following companies advertise that they produce bakeware made out of borosilicate available in the US, :

Luminarc Arcuisine Elegance

I can't speak to the boron/boron plus/zero boron debate, but those are the two I would investigate.

I know that Bodum also advertises borosilicate products, but I'm not sure if they make bakeware.

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Are you sure that Luminarc makes glass bakeware? I only know them for producing plates and bowls made of glass which looks like ceramic, in fact their name slowly gets to be used as a generic name for this material around here. –  rumtscho Apr 25 '13 at 9:06
    
Rumtscho, it's not their main business, but they do make ramekins and what we'd call a glass casserole dish, but they amusingly call a "furn, "which I can only imagine means sort of fun-urn, as in where the ashes of my burn casserole would be. ;) –  Spencer Soloway Apr 25 '13 at 13:33
    
nice find. By the way, the old Latin word "fornax" meaning "oven" has descendants in many languages, including the English "furnace". So I guess they were trying to create a name which is somehow related to "oven", in parallel to "Dutch oven", without using a word people already connect with a different meaning. But I agree that my analysis is pure speculation and yours is pure fun :) –  rumtscho Apr 25 '13 at 13:43
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You can buy it on ebay for $25 and up.

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Could you please add details, especially how can you ensure that the glassware in question is indeed borosilicate as opposed to the common U.S. Pyrex bakeware? –  rumtscho Mar 19 '13 at 16:05
    
Yes, it is important to keep in mind that Pyrex is a material outside of North America, and a (n untrustworthy) brand in the US pretending to provide the same material... –  James McLeod Jun 24 '13 at 1:35
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