Removing blackened burned on food in the dishwasher
I find with roasting dishes and Corningware if I give it a quick spray with nonstick cooking spray before using the pan it almost always comes off completely in the whirlpool power cleans, but if you’ve really turned it into black carbon, it’s probably not gonna come off in any dishwasher without some soaking in mechanical scrubbing before it goes in.
John L