Trying out a citric acid rust treatment at home

I finally got around to testing a citric acid rust treatment on some old wrenches I found in the garage, and I'm honestly kicking myself for not trying it sooner. If you've got a pile of rusty tools or vintage hardware sitting in a bucket somewhere, you know the struggle. You want them clean, but you don't necessarily want to spend three hours breathing in toxic fumes from a heavy-duty chemical stripper or losing a fingertip to a wire wheel on a bench grinder. ...

May 5, 2026 · 7 min · Olalla Serena