ORIGINAL: NyDigger1
buy molasses, pour it in a bucket, throw in any iron relics, let it sit there for 3 days, afterwards take it out, if its clean its clean, if it still has some rust, but less from the time that you put it in, let it soak for another three days, rinse and repeat.
http://www.homercidal.com/molasses/ORIGINAL: Penn Digger
Interesting. Never heard that one before.
PD