I use a brass wire brush(about the size of a tooth brush) to get rid of the loose rust and use evaporust. It will not harm the metal in anyway. I use evaporust on attachments without harm then polish then with Brasso. For the shiny plates that are rusty I also soak them in evaporust then polish with brasso and very fine steel wool and then again with a soft rag. For the irons I use a cupped wire brush in a drill to derust.