Here’s a tip from reader Jose S.:
So we use our knives and, inevitably, the blades get scratched. How do you get them back to its original finish? Pretty simple actually. Most all production knives these days are have a “scrub pad” finish, applied vertically from spine to edge on the blade. If yours does, all you need are some Scotch-Brite scouring pads at the grocery store . . .
Get the pad wet and run the knife spine first on the pad using single passes that match the grooves of the vertical finish. If the scratches are too deep, then first make a few passes with some 320 grit wet and dry sand paper (wet, of course) and with the same single, vertical passes. After it looks smooth and even, apply a coat of Flitz polish and your blade will look brand new.