Removing Excess "Seasoning"
I just got some old second-hand All-Clad pans, a mix of Cop-R-Chef and Stainless. They've been horribly abused, and have some serious cooked-on deposits of vegetable oil -- far beyond what Bar Keeper's Friend will deal with in the usual manner. What's a good way to get that oil off?
I would try using Easy Off oven cleaner, the one in the blue can that's safe for self-cleaning ovens. It says you can use it on barbeque grill grates, which come into direct contact with food, so I don't see why you can't use it on pans. Don't know what "Cop-R-Chef" is, but it says it can be used on stainless steel.