If you'd like another option; when I was restoring a 70 yo high carbon knife, I was using Naval Jelly (now owned by Locktite) to remove the rust, it's a thin gel so painting it on with a chip brush is much more controllable. After the rust is gone, wash it and give it a final coat and let it sit until it has the patina you're looking for. It should only take a few minutes. I washed and rubbed the blade with OOOO steel wool until it had the sheen I wanted, wipe with food-grade oil and it's good to go. I even restored an old hand saw with this method and it looks amazing.
depends on how long you leave the knife in the solution, the patina is a form of corrosion and it will eat away the thinnest part of the blade (the edge) if left for to long, i made that mistake using hot vinegar and got the darkest gray patina i have ever seen loved it but i had to resharpen my knife lol, still a simple quick honing did the job
Did you heat up the vinegar first.......I'm doing that to my old hickory 7" knife right now......its fizzing like crazy........see what happens......good video...what would happen if you repeat the process....would that help to give it a more all over patina?
you can do it a few times if you want it darker, but after 2 or 3 times the edge will need to be honed and the patina wont get any darker i do all mine twice in heated vinegar re-hone the edge and go on about my business, just clean the blades between the patina processes with alcohol.
Try here, this is the same brand I use in the video. I don't know if they ship to Mexico but it wouldn't surprise me if they do. ontarioknife.com/collections/old-hickory%C2%AE-1
