Cast Iron Skillet Loses Seasoning After Cooking Chicken? I season my cast Iron thoroughly until it is so slick it could sell a used car.  However, whenever I cook chicken breast, I notice the seasoning comes off?  No other foods do this.  I can cook eggs and vegetables in it with no problem, but for some reason chicken breast is the problem food.

I suspected I wasn't oiling the pan enough for cooking, but even when I added more, the seasoning came off.  Is this a thing with chicken?  Does the fat coat to the seasoning and cause it to come off?

Also, if relevant, I season using grapeseed oil on my range until the oil coats and seasons the pan as it should.
Seasoning in cast iron pans is very sensitive to acidity.
For example, tomatoes or a sauce based on it, will easily degrade your seasoning.
It is possible that your chicken, its marinade or exterior is acidic as well.

Make sure also you cook the chicken on its side long enough for it to naturally come off and no longer stick to the pan surface. Don't force it off.