If I am babying them, kosher salt and oil once it’s cool enough, then rinse & dry. Otherwise I scrape at it with the metal spatula then wash with soap and a scratchy sponge, it’s fine as long as you don’t soak them, and do dry them well after.

We do have a chainmail scrubber - my husband was soaking the skillets and killing the finish, he likes the chainmail scrubber.