I did have a pyrex dish explode on me once. It was around Christmas time, and we had a ham in the oven, had been for quite some time. It was about ready to come out, when we heard an awful noise from the kitchen, like something had fallen and dropped HARD. We couldn't find anything, but there was smoke coming from the oven, we shut it off, and inside were pieces of glass EVERYWHERE. The racks were still in place (initial thought was an oven rack broke and it fell) and there was still a good size chunk under the ham in place that hadn't even budged.
It was definitely odd! However, that was a piece that was probably 30 years old, it's the only time I've experienced ANYTHING like that. We called Pyrex, when someone told us they would replace it, they did. In fact, they sent us an entire new set of Pyrex dishes, and we disposed of the glass shards (thankfully it broken into larger chunks, so it was easy to clean out of the oven when it all cooled! Ham was, of course, ruined.)
But anyway, there's your one-in-a-million. I've never felt like I shouldn't use Pyrex anymore, especially since that's what generations of family has ALWAYS used. Used one tonight, actually, to make a spaghetti bake! Not trying to turn anyone away, but I am saying they might have a 'shelf life', and they should occasionally be checked for cracks and things (I suspect there was a crack that juices from basting the ham got in and spread and eventually broke. The way it broke apart made it seem that way, not like impact, but like it 'fell apart'). SO, that said, if you have Pyrex dishes, give them a good look-over, and if they do have damage, get rid of them and replace them with this one! haha!
Also, again, Kudos to Pyrex for giving us a no-nonsense "my bad" replacement on the thing!
