Yes, you can wash a cast iron pot or pan with soap without damaging the seasoning, as long as you do it properly. The idea that soap should never be used on cast iron is a common misconception. The key is to be gentle and avoid using harsh chemicals or abrasive scrubbers that can strip away the seasoning.
Here's a step-by-step guide on how to wash a cast iron pot or pan with soap while preserving its seasoning:
Cool down the pan: Allow the cast iron pan to cool down completely before washing it. Never wash a hot pan, as sudden temperature changes can cause the iron to warp.
Use a mild soap: Choose a mild dish soap that doesn't contain harsh chemicals or strong detergents. Avoid using any soap with added fragrances or bleach.
Use warm water: Fill the sink or basin with warm water and add a small amount of the mild dish soap.
Gently scrub: Use a soft sponge or dishcloth to gently scrub the surface of the pan. Avoid using abrasive scrubbers like steel wool, scouring pads, or metal brushes, as they can remove the seasoning.
Rinse thoroughly: After cleaning the pan, rinse it thoroughly with warm water to remove all traces of soap.
Dry immediately: Dry the cast iron pan immediately using a clean towel or paper towels. Moisture is the enemy of cast iron, as it can lead to rusting.
Re-season if necessary: If you notice that some seasoning has been removed during the washing process, you can re-season the pan. Apply a thin layer of vegetable oil or flaxseed oil to the surface and bake it in the oven following the manufacturer's instructions.
Remember, proper seasoning is built up over time with regular use and oiling. The more you use your cast iron pan, the better seasoned it becomes, leading to a naturally non-stick surface. By washing it gently with soap and water and avoiding harsh cleaning methods, you can maintain the seasoning and keep your cast iron pan in excellent condition.