Posted By: ckPaid for sharpening and it was the sharpest knife I ever used so far. It only took 1 use to get patina. It got slight blue tint from cutting potatoes. The kurouchi is really not as stainless as I thought it would be because it got some minor patina too.
It gotten slight blue patina and slight darker brown patina on the edge. I use a scotch sponge and try to remove the darker brown patina but it screwed up like 20% of its edge. The scotch sponge actually rubs out quite alot of material because the sponge got blackened a little. I really regret that I used scotch sponge on it.
I bought the cheap knife guard but it was so tight I scratched the surfaces so I recommended not to use that cheap knife guard with these knives.
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