What Is the Black Residue on My Cast-Iron Pan?

The black residue on a cast-iron pan or skillet isn't harmful, but it's not appealing either. Here's how to clean up that black residue.

Cleaning my cast iron. Dry it off with paper towel and it turns black while my pan turns grey? : r/castiron

Here's how to restore your rusty cast iron skillet back to its shiny, seasoned glory

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