Wash by Hand: After each use, clean the cast iron with hot water and a stiff brush. Use mild soap if necessary, but avoid using excessive soap or harsh detergents, as they can strip away the seasoning.
Dry Thoroughly: Dry the cast iron immediately and thoroughly with a towel or paper towels. Water left on the surface can lead to rusting.
Apply Oil: While the pan is still warm from washing, apply a thin layer of oil (vegetable oil, flaxseed oil, or other oils with high smoke points) to the entire surface of the pan, including the exterior and the handle.
Remove Excess Oil: Wipe off any excess oil with a paper towel. The pan should have a thin, even coating.
Bake for Seasoning: Place the cast iron upside down in a preheated oven (around 450°F or 232°C) for about 1 to 1.5 hours. This process helps polymerize the oil, creating a durable, non-stick surface.
Cool in Oven: Turn off the oven and allow the pan to cool inside.