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Still, Consumer Reports is calling on the Consumer Product Safety Commission to do a thorough review of the glass bakeware now on the market. Both companies also insist the number of reported problems is miniscule compared to the total number of pieces in use. Pyrex and Anchor Hocking insist their glassware is safe when used according to directions. For example, a Pyrex label says “Avoid extreme temperature changes.” But, it also said the bakeware is oven and freezer safe. But some customers might find them confusing. Those directions can also be found on the companies websites. has come with warnings and instructions, often in small print. Pyrex took issue with Consumer Reports tests, saying they “clearly violate the instructions for safe use we provide to consumers.”įor decades, glass bakeware sold in the U.S. The European made bakeware stayed intact at 450 degrees, but five out of six pieces shattered when the temperature was increased to 500 degrees. In all ten instances, the American made bakeware broke. Straight from the oven the dishes were then placed on wet granite, something that goes against the glassware’s instructions.
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Testers put dry sand in the bakeware – which gets hotter than food – and put the glass dishes in an oven for 80 minutes at 450 degrees. The American products are made of tempered soda lime glass while the European glass bake ware is made of a different material called Borosilicate. It compared American-made Pyrex and Anchor Hocking brand glassware to more expensive European-made Pyrex. READ MORE: Omicron Surge: Oakland Charter School Closes For Week Because Of Teacher ShortageĬonsumer Reports also did its own bakeware test. Those incidents included 42 reports of injuries. The group reviewed 163 shattering incidents, most of them were complaints that had been filed with the Consumer Product Safety Commission. Prompted by stories from consumers such as Valerie and Carla, Consumer Reports conducted a one-year investigation of glass bakeware. “I opened the oven and to my great surprise there was a molten melted mass just sitting there, and I could see the two handles of the Pyrex were tilted down.” “I heard this Boom,” Thadden told Consumerwatch. Months after Biddle’s experience, Thadden said her Pyrex shattered while she was baking a tamale pie in a 350 degree oven. Biddle suffered burns and deep cuts to her feet.īiddle’s friend, Carla Thadden, of Citrus Heights, has had her own problems with Pyrex. “All that I had in my hands was the handles, everything else broke into little tiny, tiny, tiny pieces that just spread out all over,” she recalled. But Pyrex bakeware carries a warning that it should not be put in the broiler. READ MORE: 2 Women Jailed After Danville Costco Purse Theft Followed By Walnut Creek Nordstrom Shopping Spreeīiddle had been cooking chicken at 350 degrees, and said she had turned on the broiler for about ten minutes to brown the poultry. “I removed my dish, closed the oven, and started to walk towards the counter and Boom! It exploded,” she said. Valerie Biddle of Orangevale has painful memories of the last time she used Pyrex. But according to a Consumer Reports investigation, it may not be as sturdy as you think. SAN FRANCISCO (CBS 5) – Glass bakeware is a staple in many kitchens.