This quote from the owners of Pyrex which I posted at another forum a while back. They are definitely not the same products we grew up with. Corning spun off its kitchenwares division in the 1990s, so Pyrex is now owned by World Kitchen, which also owns CorningWare. World Kitchen provides a two-year guarantee on its Pyrex products. "World Kitchen, Inc. promises to replace any Pyrex brand glass item that breaks from oven heat within two years from date of purchase," the company says on its Website. However, there are certain conditions. World Kitchens advises consumers to never use Pyrex products on stove tops, under a broiler, or in a toaster oven. Consumers are also told to avoid "severe" hot to cold temperature changes. Cooks, who in the past found that Pyrex was durable enough to allow some latitude from those conditions, are apparently finding that now, any deviation is risky business. "I used my 13-by-9 Pyrex pan to cook a roast. As I was making gravy, the dish suddenly shattered all over the place. I am still finding shards of glass and it has been two days," Brandy, of Macomb, Michigan told ConsumerAffairs.com. _________________