normally after cooking i do the same rich. if it wont simpley wipe clean i add some water boil it and and scrape with spatula. if it still wont come off then burn it. but you will have to reseason. i put an old ditry built up one i wanted to clean in a bon fire a couple weeks back at my b-day party. i had a 5 ' wire through handle. when i pulled it out after 3-4 hours it was glowing. after it cooled the 1/8th " crust on it was gone. you could read the numbers stamped on it at manufacturing. other than being black it was like new. i washed in soap and water. dried on the stove top heat so it wouldnt have time to rust and wiped down with veg oil and baked at 400 for 1 1/2 hrs. like new.