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Title: 12/21/2012
Review: There's no question that the glass pans made in the U.S. today are not your grandmother's Pyrex.The original Corning Inc. pans, invented in 1915, were made from a particularly strong material, borosilicate glass. Virtually all glass bakeware sold in the U.S. since the 1980s is now made of a different material, soda lime silicate glass, said Daniel Collins, a Corning spokesman.Company officials say that soda lime silicate glass is better able to withstand impact if banged or dropped and that it is better for the environment. Ceramics experts also note that it's cheaper than borosilicate glass.
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