Aaaaaaaah!

You changed the edge profile on a Mora with a scrapper sharpener? It is the world's easiest knife to sharpen with any stone or diamond plate. In 98.6 Cody says a blind man could do it!

Sorry!

I couldn't help myself! I'll go sit in the corner now. <img src="/images/graemlins/blush.gif" alt="" />

A carbon steel knife should develop a nice blue/black color. Your blade should get darker as you use it. This is due to the formation of magnetite (Fe3 O4), the black oxide of iron. This is the same thing you get as you use your cast iron skillet or dutch oven.

It is a good thing. This thin layer of Magnetite gives some protection against the formation of red iron oxide (Fe2 O4), i.e. plain old rust. Note: that is SOME portection. Leave the blade wet or use around salt water and it will still rust.

If anyone says anything about your knife, tell them your knife has a classic cold blued finish that you just cannot acheive with plain old stainless blades. <img src="/images/graemlins/grin.gif" alt="" />

If you damage the edge, run a course diamond sharpener over the edge, followed up by a fine one. Job done.

Yep Craig. I did! In fact ALL of my Moras have been "reprofiled" by dragging thru the scraper. I can sharpen any knife I've run across "properly", but for my Moras (and yes, for my Opinals) I BOUGHT them so I could just run them thru the scraper one or two licks in the midst of a cutting job. I can live with the shame.