What Grit Numbers Mean
Grit refers to the coarseness of abrasive particles embedded in the stone. A low number means large particles and fast metal removal. A high number means fine particles and a polished, refined edge. The right starting grit depends entirely on the condition of your knife, not personal preference.
120to 400 Grit
1000Grit
3000to 4000 Grit
6000to 8000 Grit
Diagnose Your Knife First
Run a fingernail across the edge. A sharp edge bites; a dull edge slides cleanly off. Chips require starting at 200 to 400 grit. A dull knife starts at 1000 grit. A well-maintained knife used weekly starts at 3000 grit.
The Standard Two-Stone Progression
Two stones cover every situation: 1000 grit for sharpening and 6000 grit for finishing. Sharpen on the coarser stone until a full burr forms on both sides. Move to the finer stone to refine and deburr.
Choosing Your First Stones
1000-grit splash-and-go stone (King KW-65 or Shapton Pro 1000) for sharpening
6000-grit finishing stone (King 6000 or Naniwa Chocera 3000) for polishing
Diamond lapping plate or stone fixer to keep stones flat over time
Stone holder or wet kitchen towel to prevent movement while working
Flatten Your Stones Regularly Stones hollow in the center with use. A dished stone produces a convex edge, rounding the apex rather than sharpening it. Flatten your stones by rubbing them against each other under running water in figure-eight patterns, or use a diamond lapping plate. A flat stone is as important as grit selection. Check flatness every few sessions with a straight edge.
Ceramic Rods and Honing Steels
A honing rod does not sharpen. It realigns an edge that has rolled without removing significant metal. Use a smooth ceramic rod at 15 to 20 degrees, five passes per side, before every cooking session. This extends weeks between full stone sharpenings. A grooved steel is aggressive and suited to very dull or thick Western blades only.
"The goal is not a mirror edge. The goal is an edge that stays sharp through a week of cooking.
"KaiRenner26th of April 2026