Sharpening Stone Grits Explained

Grit is the single most confusing thing about buying a sharpening stone. The number describes how coarse or fine the abrasive is: lower numbers are coarser (remove metal fast, leave a rough edge) and higher numbers are finer (remove little, refine and polish). Get the grit choice right and sharpening is simple; overthink it and you buy stones you'll never use. Here's what each range does and what a home cook actually needs.

What the grit ranges do

• Coarse (under ~400):for repair only — setting a new bevel, fixing a chipped edge, or reviving a very dull knife. Removes metal fast; leaves a rough edge you must refine.
• Medium (~800–1200): the sharpeninggrit — this is where an edge is actually created. A ~1000-grit stone sets a keen working edge on almost any kitchen knife. If you own one stone, it's this one.
• Fine (~3000–6000): the finishinggrit — refines and polishes the edge from the 1000 stone into something that glides. Nice to have, not essential.
• Extra-fine / polishing (8000+): mirror polish for hard Japanese steel and enthusiasts. Diminishing returns for everyday cooking.

The grit numbers aren't standardized — don't obsess

One honest caveat: grit ratings vary between makers and systems (Japanese, ANSI, FEPA), so a "1000" from one brand isn't exactly a "1000" from another. Don't chase precise numbers — think in ranges (coarse / medium / fine) rather than exact figures. What matters far more than the number is holding a steady angle and raising a burr; grit is the easy part.

Which grits a home cook actually needs

For most kitchens, two grits cover everything: a 1000 and a 6000— 1000 to sharpen, 6000 to finish. That's exactly why a 1000/6000 combination stone is the standard recommendation and our default pick for a first stone: one block, both jobs, low cost. Add a coarse (~400) stone only if you need to repair chips or reprofile a badly neglected edge, and a very fine (8000+) stone only if you own hard Japanese knives and enjoy chasing a polish. Everyone else can ignore the far ends of the range.

Grit order and technique

Always work low to high: sharpen on the coarser grit until you raise a burr along the whole edge, then move to the finer grit to refine it. Skipping straight to a fine stone on a dull knife just polishes a dull edge. If you're starting out, a soft, forgiving beginner stone in the 1000/6000 range plus the motion in how to use a whetstoneis all you need. Grit is a detail; the fundamentals — angle, burr, order — are the whole game.