To keep your cast iron skillet seasoned and nonstick, follow these steps:
Initial seasoning: If your cast iron skillet is new or hasn't been seasoned before, start by washing it with warm, soapy water to remove any manufacturing residue. Rinse thoroughly and dry completely.
Applying oil: Coat the skillet with a thin layer of oil or solid vegetable shortening. You can use oils like vegetable oil, flaxseed oil, canola oil, or grapeseed oil. Avoid using butter or low smoke-point oils like olive oil.
Wiping off excess oil: Use a paper towel or cloth to wipe off any excess oil. The goal is to create a thin, even layer on the surface of the skillet.
Baking: Place the skillet upside down in an oven preheated to around 350°F (175°C) and let it bake for about an hour. Place a foil-lined tray or aluminum foil on the lower rack to catch any dripping oil.
Cooling: Turn off the oven after an hour and allow the skillet to cool completely in the oven. This helps the oil to polymerize and create a durable, nonstick surface.
Regular maintenance: After each use, clean the skillet with hot water and a stiff brush or sponge. Avoid using soap, as it can strip away the seasoning. If there are stubborn bits of food stuck on the skillet, you can use coarse salt as a gentle abrasive to remove them.
Drying: Thoroughly dry the skillet with a clean towel or by placing it over low heat on the stovetop. Moisture can lead to rusting, so make sure it's completely dry.
Applying a thin layer of oil: Once the skillet is dry, apply a thin layer of oil all over the cooking surface. You can do this by soaking a paper towel in oil and rubbing it on the skillet's surface.
Storing: Store the skillet in a dry place with good air circulation. If you stack your cast iron cookware, place a paper towel or cloth between them to avoid moisture buildup.
Regular re-seasoning: Over time, the seasoning on cast iron can wear off due to regular cooking and cleaning. To maintain its nonstick properties, you may need to re-season your skillet occasionally. Simply repeat steps 2 to 5 to build up the seasoning.
By following these steps and using your cast iron skillet regularly, you'll maintain a well-seasoned, nonstick surface that improves with time and use.