So here's one I did this morning with a Tojiro ITK petty that I had removed the kuro-uchi finish and polished to about 2000. This was 3 trips through the bath, rinsing and cleaning after each with some 0000 steel wool.
I saw another video that added a few drops of dishwashing liquid to reduce surface tension, may try that on the next one, but not sure how it will do with boiling vinegar........
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