Hi everyone!

I just received a new Frosts Mora Clipper utility knife. The first thing I noticed though, is that the blade looks very funny. Is that a result of the blade being "high carbon"?

I used it to cut through a banana, rinsed it under the faucet, dried it with a towel and now it has these ugly stains, as you can see in the pictures.

Are high carbon knives supposed to stain and be ugly like that?