It's crucial to follow a method that preserves the seasoning and prevents damage. Here's a step-by-step guide to doing it right:
Check the Cast Iron: Before you begin, inspect the cast iron for any food residue or signs of rust. This will help you determine how much cleaning is needed.
Use Warm Water and a Soft Scrub: Never use cold water to clean cast iron. Use warm water and a soft, non-abrasive scrubber, such as a nylon brush or sponge, to remove any food debris. Avoid metal scrubbers or harsh scouring pads as they can damage the seasoning.
Avoid Soap if Possible: The use of soap can strip away the protective layer of seasoning on the cookware. If necessary, a small amount of mild soap can be used, but rinse it thoroughly afterward.
Tackle Stubborn Residue: If the cookware has stubborn food residue, use a scraper made of plastic or wood. For really tough spots, you can make a paste of coarse kosher salt and water and scrub gently.
Rinse and Dry Thoroughly: Rinse the cast iron under warm water. Ensure all soap and food particles are removed. Use a clean towel to dry the cookware immediately after washing.
Ensure Complete Dryness: To remove any remaining moisture, place the cast iron on a stove burner over low heat for a few minutes until it's completely dry.
Apply a Thin Layer of Oil: Once the cookware is thoroughly dried, apply a thin layer of cooking oil (like flaxseed, canola, or vegetable oil) to the interior surface. Wipe the oil around with a paper towel until the surface is evenly coated.
Heat the Oiled Cookware: Heat the oiled cookware on the stove over medium heat until it just starts to smoke. Then, turn off the heat and allow the pan to cool.
Store Correctly: Store the cookware in a dry, safe place. Avoid stacking other items directly on the surface of the cast iron. If you must stack it, place a soft, dry cloth or paper towel in between to prevent scratching and moisture buildup.
Remind your staff to always treat cast iron cookware with care, as it's delicate and can be easily damaged by incorrect cleaning methods. The proper maintenance of cast iron will ensure it stays in great shape for many years.