Surface rust on cast iron can often be scrubbed away, then the pan dried and re-seasoned. Do not keep using a skillet with loose rust particles or significant structural damage.
Identify the rust
Orange or reddish-brown powder on a dry surface suggests rust, while stable dark brown or black layers may be seasoning. Inspect under bright light before scrubbing.
Scrub and rinse
Use an appropriate brush or mild abrasive to remove the rust, then rinse and dry immediately. Follow the manufacturer’s advice for stubborn patches; extensive pitting may need professional assessment.
Restore protection
After removing rust, warm the completely dry pan and apply a very thin oil film. Re-season using a suitable method and store in a dry location.
Frequently asked questions
Will cooking bacon automatically remove rust?
No. Rust should be physically removed and the surface restored before cooking food.
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