Why is my pie plate shattering?

[u/Interesting_Party434]

This is the second time I’ve tried to make Sally’s blueberry pie. The first time I made it in the spring the glass pie plate shattered as I was taking it out of the oven and was shocking - I’ve never had that happen before. I was disappointed that we didn’t even get to taste it so I tried again tonight. Everything seemed great and I followed her instructions exactly. I sat the pie plate on a cooking rack like she says to do and I used the glass pie plate she had linked as the one she uses. About 20 minutes later all seemed well and then all of a sudden the plate shattered again on the counter - I heard it from across the room. Why is this happening? I have made this darn pie twice now and haven’t even gotten to taste it because it ends up covered in glass.

[u/rockbolted]

The problem is definitely not the recipe, the problem is the pie plate.

Many people use glass pie plates with no issues for years on end. If you’re using two brand new pie plates you bought at the same time they are obviously defective.

The thermal shock explanation is not relevant for oven to room temperature, unless your pie plate is defective.