About 20 years ago I wrote a small story for the Dallas Morning News on how to season cast iron pans. It was a good story.
What I didn't grok at the time was the science behind reconditioning cast iron. Here it is, broken down by a brilliant food nerd. The key is repeated applications of flax-seed oil. But read for yourself:
Chemistry of seasoning cast iron pots
Many thanks to Jay Lake, (extraordinary man) for the link.
Happy Seasoning,
xoxoxo
Nancy