Do you need to season a lid?
The short answer is yes! Seasoning does more than just make a skillet naturally non-stick; it also protects cast iron from rusting. Seasoning is a layer of polymerized oil that bonds with the surface of cast iron. This protective layer of polymerized oil helps keep water from penetrating down to the iron itself, and making it more difficult for rust to form. Since a lid is where steam and evaporated moisture will collect when you’re cooking, this is pretty important! Plus, if any food splatters on your lid while cooking, it’ll be a lot easier to clean if you have a good layer of seasoning.
How should you clean a cast iron lid?
Unlike a cast iron skillet, a lid won’t get an even layer of oil or fat heated up on its surface every time you cook. This means that the seasoning you develop on a lid will really only come from your cleaning and care routine, so it’s important to take the right steps (and use the right seasoning oil).
We also know that cleaning a lid can be a bit more difficult than washing your pan, largely due to the self-basting rings on its underside. (But we’d never give these up, they're the key to tender, moist braises!) That’s why we love using a chain mail scrubber to scour every side of your lid. It’s thinner and has more movement than a dish sponge, so it can easily get around the handle and self-basting rings on your lid with no extra effort.
