I cannot believe people go to all this trouble for their cast iron !!!!!!
I just use a wee scrubber thing, no soap, just hot water, dry it and its all set for the next time!!!!!!
Sometimes, if I remember - I fill it with water after cooking (while still hot) and all the remnants just wipe off !!!!!
I have been told to never EVER use soap on cast iron !
Hermyone, I am guessing that cast iron is semi permiable, but please correct me if I am wrong, and I would be concerned about using something so harsh. Not only from the iron point of view but also ingesting any residue that has permiated the iron.