Corning Ware is not Corningware Pyrocream. Pyrocream is the type that was made to go from the freezer to the oven without shattering.
There was a detailed thread about pyrocream a ways back. I will look for it.
But then why is the post 1972 Pyroceram marked with an A? As mine is? that's kind of confusing.Your item number has an A prefix. It is not pyroceram. You want a P prefix on the item number.
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