Which Whetstone Grit Do You Need?

Walk into our studio and the most common sharpening question is not about technique. It is "which stone do I actually need?" The grit numbers make it look complicated, but the logic is simple: low numbers remove steel fast, high numbers refine. Here is how we explain it across the counter.

The grit bands

Coarse: #120 to #400. Repair

Coarse stones are for fixing problems, not routine sharpening. Chips, broken tips, reshaping a badly worn edge, or thinning a blade that has grown thick behind the edge over years of sharpening. They remove a lot of steel quickly, which is exactly why you should not use them often. If your knife needs this level of work and you have not done it before, consider our sharpening service instead. Repairs are most of what we do.

Medium: #800 to #1200. The workhorse

This is where real sharpening happens. A medium stone resets a dull edge and does most of the work in every session. If you only ever buy one stone, buy a #1000. No debate from us on this one.

Fine: #3000 to #6000. Refinement

Fine stones polish the scratches left by the medium stone and take the edge from sharp to properly keen. Kitchen knives genuinely benefit up to about #3000. This is the natural second stone to own.

Ultra fine: #8000 and beyond. Polish

Mirror edges and the final pass on traditional single bevels like yanagiba. Beautiful, satisfying, and honestly optional for everyday cooking. Past #8000 you are chasing feel and finish more than cutting performance on food.

What we would buy, in order

• First stone: a #1000 from our synthetic whetstone range, plus a flattening plate. The flattener is not optional. Stones dish with use, and a dished stone sharpens badly.
  
• Second stone: a #3000 to #4000 to refine the edge.
  
• Quality of life: a sink bridge or stone holder so the stone stays put and the mess stays in the sink.
  
• Later, if you catch the bug: an #8000 finisher, a leather strop for the final touch, a nagura stone for conditioning fine stones and building slurry, and eventually Japanese natural stones, which are a rabbit hole we are always happy to talk about in the studio.

Two myths worth clearing up

• "More grits is better." No. A #1000 and a #4000 cover 95 percent of kitchen sharpening. A drawer of stones you never use is just a drawer of wet rocks.
  
• "Higher grit means sharper." Not by itself. A properly deburred edge off a #1000 will outcut a sloppy edge off an #8000 every time. Technique first, then grits. Our sharpening guide covers the technique.

Browse the full range of sharpening stones and tools, or come into the studio at Lot 10, 198 Adelaide Street, Brisbane City and we will match a stone to your knife on the spot. You can also email contact@japaneseknifestudio.com.au.