It's days like this...

[Invoice]

That you get this

Humid as all get out.

 

[mcc850]

As a Floridian, I feel your pain! Keep them heavily oiled and let them ride in slips (but always take out of slip when I get home to let air out) during the summer is what I do to try to avoid that.

 

[mrknife]

Someone had some very gnarly blade patina just from the high humidity environment that is there pocket. I think the entire exposed portion of the blade turned black.

 

[JohnDF]

Just carry Stainless knives...

 

[tinfoil hat timmy]

That you get this

Humid as all get out.

is that just from ONE DAY?

wow.

 

[Stelth]

That's why I hate carbon.

 

[AntDog]

Meh, little steel wool and grease of the elbow fix that right up.

 

[afishhunter]

That you get this

Humid as all get out.

This is why you want a patina.
Patina stops rust. (in addition to looking good)

On the "plus" side, it ain't red rust you got there ...

 

[Hickory n steel]

That's why I hate carbon.

And that's what I love about it.
The appearance of a carbon blade can change, a stainless blade will only end up looking scratched and road rashed.

 

[Invoice]

is that just from ONE DAY?

wow.

Nope. I cleaned them up a bit. these two were out of the rotation and have been oiled.

 

[Just Tom.]

Monday temps were in the mid 90’s with humidity around 90%. I was out on my bicycle and stopped for a little casse-croûte around 10:30. Cut some bread and an avocado, rinsed the knife off with my water bottle, wiped it on my shirt, and put it back in my pocket. No rust spots then.
Back home around 2:00 or so, fished my stuff out of my pockets and there were bright red rust spots where you see the splotches there. A little 2000 grit wet-dry sandpaper and some mineral oil and all is right with the world again.
Eventually it will look like this:

 

[hornetguy]

Growing up, I didn't know that knives could look any other way.. all mine ended up with black blades...

 

[Ernie1980]

I really like the way carbon changes color over time and use. (unless it turns to red rust of course) Blades from vintage knives have so much more character when they are covered with patina and stains!

 

[Hickory n steel]

Growing up, I didn't know that knives could look any other way.. all mine ended up with black blades...

Around age 12 I got a Schrade 33OT which eventually turned black on me, I thought it was ruined so I stopped carrying it.
I discovered it in my stuff a few years later and took some sandpaper to it, and the blades rusted pretty bad shortly after.
Eventually I learned about carbon steel and cleaned it with some neverdull , this time with some patina it wasn't so prone to rusting.

 

[Amir Fleschwund]

Pepper spots eliminate the safe queen collectors from the bidding, so guys like me have a chance.
It’s the edge that matters, anyway.

 

[Modoc ED]

Pepper spots eliminate the safe queen collectors from the bidding, so guys like me have a chance.

Just goes to show that Pepper spots are useful after all.

 

[huntnfishin]

Meh, little steel wool and grease of the elbow fix that right up.

On point couldn’t have phrased that any better.

Pepper spots eliminate the safe queen collectors from the bidding, so guys like me have a chance.
It’s the edge that matters, anyway.

Yup. Those are character marks

 

[Jon0385]

As a Floridian, I feel your pain! Keep them heavily oiled and let them ride in slips (but always take out of slip when I get home to let air out) during the summer is what I do to try to avoid that.

I’m in Clearwater and I don’t have any issues. I just use them and let the patina develop.