Using soap on a cast iron pan has been a subject of debate among cooks and cast iron enthusiasts for a long time. Traditionally, it was believed that using soap on a cast iron pan would strip away the seasoning—a layer of polymerized oil that gives the pan its non-stick properties and helps protect it from rust. However, modern understanding and advancements in seasoning techniques have changed this perspective.
In most cases, it is perfectly fine to use soap on a cast iron pan, as long as you follow some important guidelines:
Avoid harsh cleaning products: If you decide to use soap, choose a mild dish soap. Avoid harsh chemicals or abrasive cleaning pads, as they may damage the seasoning or scratch the surface.
Don't soak the pan: Never soak a cast iron pan in water for an extended period. Prolonged exposure to water can cause rusting. Instead, wash it promptly after cooking.
Gentle scrubbing: Use a soft sponge or brush to gently scrub the pan. Avoid steel wool or metal brushes, as they can remove the seasoning.
Dry thoroughly: After washing, dry the cast iron pan immediately and thoroughly with a towel to prevent rust formation.
Re-season if needed: If you notice that the pan's seasoning has been damaged, you can always re-season it. To do this, coat the pan with a thin layer of oil and bake it in the oven.
Remember, using soap occasionally won't cause significant harm to a well-seasoned cast iron pan. The seasoning on cast iron pans tends to improve with regular use and proper maintenance, so don't be afraid to use soap if it helps you keep your pan clean.