I read that smooth cast iron was to be avoided. The rough surface helps the seasoning (carbon) adhere to the skillet better. I have always left mine rough. We have started using the skillets to bake dishes in and serve them at the table right out of the skillet. The handle gets in the way but it looks really good. I always use cast iron when I want a good sear or browned bits to use in gravy or sauces.