I set myself a little challenge for fun recently, to see how good I could make my £11 Shibazi caidao using only stuff that also cost next to nothing. I have here; a cheap no-name SiC Coarse n Fine, a piece of 400 grit sandpaper, and some 3-in-1 oil:
View attachment 212200
The handle of the knife is really quite nice straight out the box, so I just sanded it lightly and oiled at the end.
Something that certainly needed looking at was rounding the choil and spine, which were quite sharp and would've been extremely uncomfortable in a pinch grip. I can't remember who it was, but someone here recently recommended using a stone for this rather than sandpaper. This was the first time I'd tried it and it works a charm. A few mins on the coarse side of the SiC stone has got the edges to a much nicer, more comfortable state:
View attachment 212201
The big thing though was thinning and removing some of the very pronounced belly from the profile, and taking off that nasty fake sandblasted kasumi.
Out the box the knife was exceptionally fat behind the edge, to the extent I would've called it unusable as a slicing cleaver. I like my caidao to have a little bit of heft, but this was something else and required quite considerable material removal to get to the pics below, and I did it differentially so it's thinner at the front (1st pic) than the back (2nd pic). This is what it looked like off the coarse side, I did a little more on the fine side after:
View attachment 212204
View attachment 212203
I'd forgotten how annoying cheap stainless can be to thin, so that took about an hour. And cheap SiC stones are often a little bit soft, so without fancy equipment my stone needed to be flattened the old fashioned way:
View attachment 212207
Took out some of the belly while I was thinning so the knife does now have some flat part to the profile, though I'll probably flatten it further during future sharpening sessions too.
So last up before sharpening an edge on is the aesthetic finish. The thinning has obviously removed the sandblasted kasumi, but has left some deep grind marks, and i also want to get rid of a the laser etched Shibazi logo up near the handle, and go for a uniform brushed steel kinda appearance.
Usually I'd do this with a coarse sanding progression, but I've only got 400 grit for my challenge which isn't going to cut it, so I needed to experiment, and see if I could turn the softness of my stone to an advantage. I soaked it in water for a while to soften it a bit further and then used the fine side in-hand to try to sand out some of the scratches and 'polish' the blade, before finishing with the 400 grit WnD. I'd still recommend a sanding progression for it, but in a pinch this method does work it turns out. I still have a few deeper scratch marks, especially up near the beginning of the bevel, but in general I think this looks acceptable, and I can't really be bothered with the faff of trying to get the all out:
View attachment 212206
Then it's just putting an edge on with my trusty, and now somewhat thinner, SiC combi, and trying it out...
It'll zing through normal paper and doesn't do badly on paper towel, though this isn't the cleanest of cuts. And it's great on food; will do proper paper thin garlic and ginger slices, and just generally slay all manner of veg prep.
View attachment 212202
View attachment 212214
---
All in all I'm rather pleased with the outcome, I think it hits that nice caidao sweet spot where it's not so delicate that you need to worry about it, and yet will still do fine work well. I also think it looks a helluva lot nicer now than it did before.
View attachment 212205