French's Mustard Patina Tutorial | Bushcraft USA Forums
Mustard Patina Steak Knife – Fehr Forgeworks Inc
Cutting the mustard: forcing a patina on carbon steel – Kitchen Provisions
Mustard a knife stain - Imgur
I'm not sure how long this mustard patina will last but it's a pretty one.made from an old saw blade, red spacing material, and some old hardwood I was gifted. : r/knifemaking
Tried mustard etching. Looks pretty good. Let it sit about two to three hours. : r/knifemaking
Cutting the mustard: forcing a patina on carbon steel – Kitchen Provisions