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Keep It Sharp: The Complete Knife Care & Sharpening Guide
The Vault Guides · Dossier
How to Sharpen a VG-10 Knife (Kitchen Core at About 60 HRC)
8 min read · By The Knife Vault Editorial Team
VG-10 is a Japanese high-carbon stainless that most Damascus chefs on this shelf use as the core: about 60 HRC, keen, stainless enough for a wet board, and cooperative on ordinary aluminum-oxide stones. Sharpening it is the generic whetstone method with kitchen numbers — not a powder-steel Saturday and not a gadget that chews the apex.
The how to sharpen a knife dossier is the full home method for any blade. What angle is the geometry. This page is VG-10 only: grit, angle, hone versus stone, and the stones we actually list.
01 Direct answer
Sharpen a VG-10 kitchen knife at about 15 degrees per side on a 1000-grit water stone until a burr forms along the opposite edge, repeat on the other face, refine on 3000–6000 grit, and strop. Hone weekly on a ceramic rod so you stone only a few times a year. Skip carbide pull-throughs. Diamond plates are optional, not required, at this hardness.
02 Why VG-10 behaves this way on the stone
VG-10 (Takefu) sits around 1% carbon and 15% chromium with vanadium, molybdenum, and cobalt. Kitchen heat treatment around 60 HRC is hard enough for a fine edge and soft enough that a 1000-grit water stone still cuts. Vanadium carbides exist, but not at S90V density — you do not need diamond to raise a burr on a healthy VG-10 chef.
If the knife is Damascus-clad VG-10, you are still sharpening the core. The pattern is etched through the steel; stoning the bevel does not erase the waves on the face. Never put the knife in a dishwasher before or after; detergent and heat haze cladding and dull the apex you just made.
03 What you need
A combination stone — 1000 grit to rebuild, 3000 or 6000 to polish — covers almost every VG-10 chef in a home. The 3000/8000 grit whetstone set and the Mitsumoto Sakari 240/1000/6000 whetstone are that progression on the sharpening tools hub. Add a damp towel so the stone does not skate, a mug of water, and the leather honing strop for the last passes.
A ceramic rod is the weekly tool. A grooved steel rod is gentler and slightly less precise on 60 HRC; either one, used lightly, is honing — not sharpening. If you would rather a jig hold the 15°, the guided systems on the same hub are the other school; guided sharpener vs whetstone is that buying comparison.
04 The VG-10 session
Hold 15 degrees per side — a matchbook under the spine is a crude jig. Work 1000 grit with light pressure until a burr forms along the entire opposite edge; feel it by dragging a fingertip off the edge, never along it. Flip, raise the other burr, then refine on the fine face. Finish with ten to twenty edge-trailing passes on leather or cardboard.
Test on paper or tomato skin. If it skids, the angle wandered or one side never raised a full burr. Go back. VG-10 does not mind extra minutes; it minds a carbide pull-through that leaves a toothy apex for a day.
- ◆ Angle: ~15° per side (30° inclusive) for thin Japanese-influenced VG-10 chefs and santokus.
- ◆ Rebuild: 1000 grit until a continuous burr.
- ◆ Refine: 3000–6000, lighter still.
- ◆ Finish: strop, edge trailing.
- ◆ Between stones: ceramic hone weekly; stone when the hone stops restoring bite — often two to four times a year in a home kitchen.
05 VG-10 vs harder kitchen steel at the bench
Powder-steel chefs at about 63 HRC on this shelf take longer and chip more easily if you twist. They still accept water stones, but diamond plates speed the coarse work. VG-10 is the steel you learn freehand on. Do not jump to the hardest core first and then dread the stone — that is how good knives live dull in a block.
The knives this ritual is for include the Mitsumoto Sakari VG-10 Damascus santoku and the Samcook 8-inch VG-10 Damascus chef. Shop chef knives in CAD; stones follow the 10% / free-over-$150 rule for knives and small goods. Adults 18+.
Sources & Further Reading
Frequently asked questions
Questions from the Counter
- What grit should I use to sharpen VG-10?
- Start at 1000 grit to rebuild the apex, then 3000–6000 to refine. Coarser (400–600) is for chips. Finer than 8000 is polish, not sharpening. Ordinary water stones are enough at about 60 HRC; diamond is optional.
- What angle should I sharpen a VG-10 chef knife?
- About 15 degrees per side (30 degrees inclusive) for thin Japanese-influenced VG-10 kitchen knives. Honour a thicker Western grind at 18–20 if that is the factory geometry.
- Do I need a diamond stone for VG-10?
- No. VG-10 at about 60 HRC cuts on aluminum-oxide water stones. Diamond plates help on powder steels and neglected chips; they are not required for a healthy VG-10 chef.
- How often should I sharpen a VG-10 kitchen knife?
- With weekly ceramic honing, often two to four times a year in a home kitchen. Sharpen when the hone stops restoring bite on tomato skin — by feel, not by calendar.
- Can I use a pull-through sharpener on VG-10?
- You can, and you will scrape a weak, inconsistent bevel. Carbide pull-throughs feel sharp for a day and then collapse. A whetstone is slower and produces an edge that lasts.
On the shelf
Pieces this page is talking about
From the Page to the Palm
Reading about steel is one thing. Holding it is the other.
Every claim in this guide is backed by a piece on the shelf — sharpening tools steel, named and priced plainly in CAD.
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