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Proper way to do Kurouchi?

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Don Nguyen

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Hello everybody.

I've been wanting to make a Kurouchi knife, but I wasn't sure if there was a proper way to do it.

I certainly don't want to leave the finish as-is from the forge, I'd be getting so much scale in my food; can't brush it off either. Some of it's stuck pretty dang hard on there, but it still comes off here and there.

Thanks!
 

Mike Davis

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Soak it in vinegar overnight. That will help to dissolve the scale left on it. Also it darkens it up a bit...Looks pretty good that way IMO.
 

DwarvenChef

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I'm curious to see all the ways the KU finish is done as well :)

Because there seems to be so many variations in the finish from what seems to be an applied finish to deeply etched and hard holding finishes.
 

StephanFowler

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i found vinegar to take too long and never really got it all off.

I got some muriatic acid (pool supply store) and mixed it 1 to 3 with water

takes two or three cycles soaking for 15 minutes and scrubbing with a wire brush to get all the scale off
 
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