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mbrewer mbrewer
 
M$1 May 14, 2009 04:05 AM

Is the DuraClear polycarbonate "glassware" sold by Williams-Sonoma BPA-free?

http://www.williams-sonoma.com/products/g280/
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ericvon99 ericvon99
 
 May 14, 2009 04:41 AM
All polycarbonates contain BPA or Bisphenol-A. This chemical has been shown to potentially cause cancer in lab rats. Although the amount of BPA released from polycarbonates is within the safe levels recommended by the FDA, it has raised concern especially when used in the manufacture of baby bottles.
Unfortunately, polycarbonate products are grouped with other plastic products by the FDA and so sometimes it is hard to tell from a manufacturing stamp exactly what a product is made from.Unless a hardened clear plastic product says it is specifically "non-BPA polycarbonate" it should at the very least be suspect.
Since neither DuraClear nor Williams-Sonoma state that the product is made from non-BPA material and specifically state that it is a polycarbonate I would conclude that it does contain BPA.
For more on BPA look here:
http://www.bisphenol-a.org/human/polyplastics.html
Source(s):
http://www.bisphenol-a.org/human/polyplastics.html

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ericvon99 ericvon99
 
May 14, 2009 07:36 PM
I should note that BPA was not linked to cancer but is considered toxic in large quantities.

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wdawe wdawe
 
May 14, 2009 04:38 AM
No, if they are polycarbonate they contain BPA. "Bisphenol A (BPA) is a key building block of polycarbonate plastic" so any polycarbonate product contains BPA. Whether the BPA that migrates from polycarbonates is a risk to adults is a matter of debate. Canada has decided to ban baby bottles containing BPA.

Polycarbonate is a hard plastic and will be marked with a 7 in the recycling triangle.
Source(s):
http://www.bisphenol-a.org/human/polyplastics.html
http://www.environmentaldefence.ca/pressroom/viewnews.php?id=393


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mbrewer mbrewer
 
May 14, 2009 04:44 AM
That's not true. There is a way to make polycarbonate without BPA.

http://walking.about.com/od/prpack/tp/bpafreebottles.htm

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wdawe wdawe
 
May 14, 2009 04:57 AM
I believe you have misread the statement, which is not surprising because it it vague. It says "Manufacturers of polycarbonate bottles swiftly responded by spring of 2008, producing BPA-free versions." That means they have switched to other types of plastics. For example" Original Camelbak Better Bottles were made of polycarbonate, but now they are made of BPA-free materials." The Camelback and the Nalgene bottle are made from Eastman Tritan TM copolyester which is not polycarbonate see http://www.rei.com/product/776892 and http://www.eastman.com/Brands/Tritan/Introduction/ and "Amphipod water bottles all have the recycling symbol #4 and are BPA-free and phthalate-free" #4 is LDPE not polycarbonate. The other bottles mentioned on the page are metal.

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wdawe wdawe
 
May 14, 2009 05:32 AM
I think we have strayed a bit from the original question, I have no doubt the William-Sonoma polycarbonate "glassware" contains Bisphenol A. Since polycarbonate and BPA are getting so much bad press if it was BPA free William-Sonoma would have said so.

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ericvon99 ericvon99
 
May 14, 2009 07:45 PM
I do believe there are polycarbonates that do not use BPA. However they do not share all the properties that make polycarbonates containing BPA a useful consumer product. A good analogy would be a car without an engine. While you can make a car without an engine, it is not very useful to the consumer.

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