Pocket Knife Patina

[MidnightMatador]

I know that this has probably been answered a lot here on the forum, but I wanted to get someone's opinion.

I recently purchased a knife with 1050 steel and bone scales on the handle. This is my first high carbon knife (not including my straight razor) and I really would like for it to last. I've read about how a layer of patina on a carbon blade will help prevent it from forming red rust.

So here's my questions. Should I try to force a patina or let it develop over time? If I force one, what would work? Apple cider vinegar, lemons, limes? If I just use it, are there any foods that might help set a patina?

 

[Jason Herman]

This method has worked well for me.

https://www.youtube.com/watch?v=Se-EeNzCwrM

 

[jc57]

If you want to force a patina, hot vinegar will do the trick in a hurry. Like 20 seconds. Degrease blade first (soap and water and/or alcohol). Put some white vinegar in a small glass, microwave it, take it out and dip the blade in it. Rinse off, wipe off, dry off. Repeat if desired. Oil it when finished.

I personally don't like a patina on my knives and keep them polished and oiled.

 

[Miketbass]

You can use the distilled white vinegar method as above, it is tried and true. I typically use ferric chloride when forcing an even patina as it works faster and is more aggressive, resulting in a darker even color that is more controllable. Bonus points if you cut up a few blood oranges too - got a very, very nice patina on my Gayle Bradley M4 folder this way.

With that being said.....

I do not force patinas on my blades anymore. As a matter of fact, I'm enjoying cutting a steak with my 52100 Military as I type this. I await the natural patina it will receive. It has many layers and this will add another. To me it is part of the "fun" of a carbon heavy blade, and unlike forcing a patina it will take on a natural and unique character. Keep the pivot oiled and don't sweat it. A natural patina to my eye will always speak volumes more about the knife, the owner, and their bond. It tells a story, at the risk of sounding cheesy.

The knife that got me into collecting was my grandfathers Camillus that I received after he passed (stockman style slipjoint). Plain old 1095 steel that he kept in a tackle box. I guarantee that he never forced a patina on it, maybe ever oiled it a few times, and it was good to go when I got it. Keep the pivot oiled and let the knife tell it's own story my friend. Too much paranoia surrounds the "rust on carbon or tool steel blades and how to prevent it". We live in an age of super stainless steels and tend to forget that many hundreds of years has shown us that carbon steel blades perform just fine and will most likely outlive the average person with basic care.

 

[traumkommode]

Another vote for hot vinegar. Limes give a bit of a rainbow sheen. Sriracha sauce, eggs, apples and avocados all work well, too, although those are less uniform.

 

[ThePeacent]

Another vote for oranges and limes

I like how they work and you can check every few seconds/minutes the blade in a really easy way

Other fruits with acidic content work fine, too