In the company's early years, Pyrex dishes were made with borosilicate glass, the same type of glass found in laboratory test tubes and beakers today. Borosilicate glass is treasured for its ...

If you carry the dish to the table and a micro amount ... testing vintage Pyrex for lead in a non-laboratory environment and using undisclosed methods. Other people attempted to test their ...

That’s when my pyrex baking dish shattered. Three or four large ... the intense temperatures and harsh chemical onslaughts of laboratory work, as well as temperatures up to 425 degrees ...

They also grew up seeing the cheerfully decorated dishes and cookware ... intended for use in laboratory glassware, railroad lanterns and battery jars. Pyrex, developed by Corning Glass Works ...

If you've ever poured hot water into a Pyrex glass dish and been shocked to see it fracture before ... "there is a definite possibility of thermal shock fracture." Various lab tests by Consumer ...