Another option is to place it in a self-cleaning oven and leave it in through a cycle.
I've never thought of this one.
Have you actually done this before, Jim?
I normally only use 300 / 350 degrees, set the timer for an hour or three, and take the pot / skillet out the next day after it has cooled.
I think I'm going to try this, I see no "obvious" reason why this shouldn't work.
(Still yet, a nice hot campfire is a sure fire way to clean 'em without destroying 'em.....maybe it's the ashes from the wood coals, heck I dunnno)
I just picked-up a fairly nice old pot with a flat bottom and a somewhat domed lid with a fairly heavy wire handle, about 3qt I suspect....I've kinda speculated the pot was made for hanging.
Originally, I was going to use it for processing wheel weights and adding antimony for some casting that I do that requires a high bhn.
However, after reading this just now, I think I just might clean it up good and re-season it.......a feller can never have too many old pots, IMO.
Uncle Russ...