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General Cooking (rec.food.cooking) For general food and cooking discussion. Foods of all kinds, food procurement, cooking methods and techniques, eating, etc. |
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![]() "Ron Capik" > wrote in message news ![]() > On 9/12/2011 2:53 AM, fratermus wrote: >> On 09/11/2011 05:45 PM, Ron Capik wrote: >> >>> Pyrex™ is not (and never has been) white glass. >> >> My understanding is that it's no longer borosilicate. >> > Sadly that seems to be true. I did some checking since > my first post and it seems they have been transitioning > to tempered soda-lime glass for some time. > > Also, on reading up on the catastrophic failures it does > sound like something has gone wrong in the tempering > process or some such. > > I mostly worked with fused silica [quartz] in my lab > so I had few worries about thermal stress. :-) > > == It has not been for the last 50+ years. Why the fuss now? Must have been a competitor starting a bashing campaign. |
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