For some reason I can’t get to copy so here goes, I stripped the pans completely in the oven on highest clean cycle, mine was 500, then rinse out and scrub with scotch brite pad, put back in oven on 200 for 20 minutes to open the pours in the metal then take out and apply a very thin coat of flax seed oil, I did inside and out, let no oil pooling in pan at all, put back in oven on highest heat for 1 hour and let cool in oven, take out and repeat with oil a total of 5-7 times. I used the oil I got at schnucks international collections virgin flax seed oil, any will do as long as it is pure.