I recently bought a certain "light cast iron" that looks like a wok. Cooking on induction, it seemed to give my pork broth a black tinge. Broth was fine, but there was certainly something from the pan.

The wok is supposedly preseasoned, so I don't know why this happens. Any workarounds? Should I rub the inside of the wok with cooking oil and bake it in the oven upside down for 30 minutes?


1 Answer 1


Pre-seasoned doesn't generally really mean ready-to-use. It usually only means that the cookware is coated in wax and/or oil to protect it from rusting prior to use. It still needs to be seasoned. Consumer Reports gets into that and how to season cast-iron for first use. Seasoning is also covered at length on this site.

Don't worry though, the factory coating is perfectly safe to eat as you have.

  • Whenever I've seen 'preseasoned', it was coated in oil and cooked. (but I still give them a couple more coats). It's the ones that aren't preseasoned that are coated in wax.
    – Joe
    May 24, 2018 at 17:47

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