Re: cleaning stainless steel standing rigging
Citric acid works well and won't damage the metal. As neilpride said, it will clean and passivate the surface. Rinse well with fresh water
after a 15 to 30 minute soak. Rinse and repeat if necessary. Whatever you do, DO NOT use sulfuric or hydrochloric (muriatic) acid.
"Without question, the greatest invention in the history of mankind is beer. Oh, I grant you that the wheel was also a fine invention, but the wheel does not go nearly as well with pizza." Dave Barry