Removing rust from an old cast iron skillet can help restore it to its former glory and make it usable again. Here's a step-by-step guide on how to do it:
Materials you'll need:
- White vinegar or apple cider vinegar
- Water
- Baking soda or salt
- A scouring pad or steel wool
- Paper towels or clean cloth
- Vegetable oil or any cooking oil (for seasoning)
Step 1: Assess the rust condition Check the skillet for the extent of rusting. If it's just a few small spots, the cleaning process should be relatively easy. If it's heavily rusted, you may need to put in more effort.
Step 2: Create a vinegar solution Fill a container or basin with equal parts of water and white vinegar or apple cider vinegar. Make sure it's deep enough to submerge the skillet completely.
Step 3: Soak the skillet Submerge the cast iron skillet in the vinegar solution, ensuring all the rusted areas are covered. Let it soak for a few hours or overnight, depending on the severity of the rust. The vinegar will help loosen the rust.
Step 4: Scrub the rust After soaking, remove the skillet from the vinegar solution and use a scouring pad or steel wool to scrub away the rust. Be gentle, especially if the rust is stubborn, as you don't want to remove the seasoning or damage the skillet.
Step 5: Rinse and dry Thoroughly rinse the skillet with water to remove any remaining vinegar or rust particles. Pat it dry with paper towels or a clean cloth.
Step 6: Remove any remaining rust If there are still some rust spots left, you can make a paste using baking soda (or salt) and water. Apply the paste to the affected areas and scrub gently with a scouring pad or steel wool.
Step 7: Re-season the skillet Once all the rust is removed and the skillet is clean, it's essential to re-season it to protect it from future rusting. Preheat your oven to around 375°F (190°C). Apply a thin layer of vegetable oil or any cooking oil to the skillet's surface, including the handle. Place it upside down in the oven on the top rack, with a baking sheet or aluminum foil on the bottom rack to catch any drips. Bake it for about an hour, then turn off the oven and let the skillet cool inside. The heat will polymerize the oil and form a protective seasoning layer.
Step 8: Maintain the skillet After use, clean the skillet with mild soapy water and a soft sponge. Avoid harsh scrubbers or leaving it wet for an extended period. Dry it immediately and apply a thin coat of oil to the cooking surface to maintain the seasoning.
Remember, the key to preventing rust on a cast iron skillet is regular use and proper maintenance. If you won't be using it for a while, apply a thin layer of oil to protect it from moisture.