[quote name='DizzyGuy']Yeah, she must mean that the break easy by mishandling... because Pyrex is what they use in labs in the beakers and such, and I'm pretty sure that they put them through alot more hell than we would[/quote]
To clarify: I wasn't saying that they crack due to heat changes. I am a bit clumsy when cleaning sometimes, and my bowls often fall the short distance from my hands to the sink (yea, my fault), and my ceramic/ clay bowls never break. The pyrex ones always do. Pyrex is used for cooking and in very heat-crucial situations because of it's durability. They are just more awkward for my clumsy hands. Sorry for the confusion.