This is the method of getting rid of the corrosion from the pan. Reliant on the pan's size, pour 2 to 4 teaspoonful of salt into the middle of the pan. Add an identical sum of vegetable oil, and then Scrub the pan robustly with a creased paper towel, focused on the corroded parts but covering all surfaces with the oil and salt mixture. Add more salt or oil as needed. For more serious corroded spots, scrub with fine steel wool and Wash the pan with dish washing liquid and rinse well with hot water then dry completely.