Picked up a CI pan I wanted to clean: remove surface rust, remove sharp casting edges, etc.
One, small piece, so I tried the ‘oven-cleaner-in-a-bag’ method of stripping.

Kind of a mess to spray with the can held vertically, inside the trash bag, the fumes, etc.
It worked, but not as fast, or as well, as the lye tank. I assume because the pan is submerged in the lye tank, and the oven cleaner can run off?
Anyway, the lye tank takes a little longer to set up (and can do multiple pans), but is less work overall, due to less residual scrubbing.
Finished pan, after 3 coats with Crisbee Puck.
Philbert