When cleaning a cast iron skillet, it's generally recommended to avoid using soap, especially harsh detergents or dish soaps, as they can strip away the seasoning of the skillet. The seasoning is the natural, built-up layer of polymerized oil that gives cast iron its nonstick properties and helps protect it from rust.
Instead, follow these steps for cleaning a cast iron skillet without soap:
Allow the skillet to cool: Let the cast iron skillet cool down completely after cooking. Cleaning it while it's still hot can cause warping or damage.
Remove excess food: Use a stiff brush or a non-abrasive scrubbing pad to remove any remaining food particles from the skillet. You can also use a plastic scraper or spatula to gently scrape off stuck-on bits.
Rinse with hot water: Rinse the skillet under hot water while scrubbing gently. Avoid using cold water, as it can cause thermal shock and potentially damage the cast iron.
Dry thoroughly: After rinsing, use a clean cloth or paper towels to dry the skillet completely. Moisture can lead to rust, so ensure that it is thoroughly dried.
Apply a thin layer of oil: To maintain the seasoning and prevent rust, apply a thin layer of cooking oil or fat to the surface of the skillet. Use a cloth or paper towel to spread the oil evenly, ensuring all surfaces are coated. You can use oils like vegetable oil, canola oil, or flaxseed oil.
Remember, the goal is to remove any food residue without removing the protective seasoning layer. If you find that there are stubborn, stuck-on food particles that require additional cleaning, you can use a small amount of coarse salt as a gentle abrasive. Simply sprinkle some salt onto the skillet and use a cloth or paper towel to scrub the surface.
By avoiding soap and following these steps, you can effectively clean your cast iron skillet while preserving its seasoning and extending its lifespan.