Guy at the hardware store in Tulsa said flaxseed oil goes rancid in cast iron, now I'm second guessing my whole seasoning

Miles Brown · 2026-10-14T15:10:05.536246+00:00

I was buying a wire brush at a True Value in Tulsa last week and the older guy at the counter saw my cast iron in the basket and asked what I seasoned with. When I said flaxseed oil he shook his head and said it flakes off and goes sticky after a few months because it's a drying oil, not a cooking oil. I went home and checked my 12 inch skillet and sure enough there were little black flakes coming up near the edges. So now I'm doing a full strip with oven cleaner and starting over with plain Crisco, two rounds so far and it looks way more even. Has anyone else had flaxseed flake on them or was this guy just old school?

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Guy at the hardware store in Tulsa said flaxseed oil goes rancid in cast iron, now I'm second guessing my whole seasoning | Cast Iron Care - Topic Shares