You can use steel wool or sos pad but do it gently to remove any food residue clean them with no soap at all....to season a cast iron pan you fill the bottom of the pan with salt and bake it in the oven for at least an hour on 400 degrees...make sure you use a oven mit! dump the salt in to the next pan you have to season or save it in a ziplock bag after it cools of course next step is to take a canola or or olive or veggie oil coat the bottom of your pan and store. when you use the pans you do not have to repeat this whole process unless the pans are sticking when you remove from the water make sure you dry them on the stove to avoid rusting and coat the bottom with a light coating of oil.
You can use steel wool or sos pad but do it gently to remove any food residue clean them with no soap at all....to season a cast iron pan you fill the bottom of the pan with salt and bake it in the oven for at least an hour on 400 degrees...make sure you use a oven mit! dump the salt in to the next pan you have to season or save it in a ziplock bag after it cools of course next step is to take a canola or or olive or veggie oil coat the bottom of your pan and store. when you use the pans you do not have to repeat this whole process unless the pans are sticking when you remove from the water make sure you dry them on the stove to avoid rusting and coat the bottom with a light coating of oil.