My husband did that for me, smoothing a new cast iron pan. He says to use 60 grit paper on a vibratory sander. If you want to hire someone, look for a machine shop and describe what you want. If your new pan came 'preseasoned' you will have to season it from scratch. I have 3 old pans in 3 sizes that were my mother's and may have been grandmother's, If we had to evacuate quickly the middle one, 8" diameter, would go with me for sure.

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