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rusted cast iron

chairbc May 1, 2012 09:24 AM

Our story so far:
The outside (emphasize: NOT the cooking surface) of a cast iron skillet has rusted.
I've cleaned the rust off with an SOS pad, water, and steel wool. and dried it as thoroughly as I can.
What is the next step to protect the outside (again, NOT the cooking surface) for the future?
I'm guessing some kind of oil and maybe putting in a low oven for some time.
But what kind of oil? neutral cooking oil? something else?
thanks in advance

  1. g
    GH1618 May 1, 2012 09:47 AM

    Crisco shortening. Heat the pan in the oven, melt the Crisco, wipe exterior with a rag. Follow the procedure given here, where it applies:


    Normally, the Crisco would be melted right in the hot pan. Is there some reason you wouldn't want to do it that way? You could melt it separately.

    1. Chemicalkinetics May 1, 2012 10:08 AM

      <What is the next step to protect the outside (again, NOT the cooking surface) for the future?>

      You can apply a thin layer of cooking oils (any really, except maybe extra virgin olive oil), and bake it for a hour at 350-400 oF.

      3 Replies
      1. re: Chemicalkinetics
        chairbc May 2, 2012 07:03 AM

        tried this yesterday, your approach looked simple enough (and I have cooking oil in house, but not Crisco); results looked fine,thanks.

        1. re: Chemicalkinetics
          chairbc May 3, 2013 09:57 AM

          more than a year later, the frying pan show no signs of previous problems--I'd forgotten about this whole exchange, because the thing is as good as newly-broken in. If I didn't thank Chemicalkinetics enough then, I'm certainly trying to now!

          1. re: chairbc
            Chemicalkinetics May 3, 2013 10:06 AM

            No need to thank me, but I sure am glad that you stopped by and share your experience with us. :)

        2. k
          kseiverd May 4, 2013 04:36 AM

          I try to use my ever growing collection of cast iron as much as possible, but rust is inevitable, I guess?!? I usually scrub with cheap salt, rinse well under HOT water and "dry" by setting back on burner till pretty hot. Then a dab of bacon grease... that's what my Grandmother always did. I wipe out inside with paper towels and continue wiping exterior with same paper towel. Works for me.

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