Coffee Grind Size Chart: From Turkish to Cold Brew

Grind size is the single biggest lever most people underuse. Same beans, same roast, same water — change only the grind size and brew method to match it, and you get a completely different cup. Here's what "right" looks like for each method, with rough particle sizes so you have a real reference instead of a vague word like "fine."

Turkish — extra fine, powder

Roughly under 100 microns, close to the texture of flour or powdered sugar — finer than espresso. Turkish coffee is boiled directly with the grounds still in the water (unfiltered), so an extra-fine grind is needed both for flavor extraction in that short simmer and so the grounds settle into a thick sediment at the bottom of the cup rather than staying suspended. Dedicated Turkish grinders exist because most standard burr grinders don't have a fine enough setting to reliably hit this range.

Espresso — fine, table salt to slightly finer

Roughly 200-400 microns. This is the range where pressure-based extraction (9 bar, 25-30 seconds) needs enough resistance to build proper crema and extract efficiently in that short window. It's also the narrowest acceptable range on this list — small shifts of even 50 microns can noticeably change shot time and flavor, which is why espresso grinders tend to have finer-grained adjustment than drip-oriented grinders.

Moka pot — fine to medium-fine

Slightly coarser than espresso, somewhere around 400-500 microns — think fine table salt, a touch coarser than espresso grind. Moka pots build pressure (though far less than an espresso machine, closer to 1-1.5 bar) by boiling water up through a funnel and grounds basket, so they need some resistance but less than true espresso, and a true espresso-fine grind can choke a moka pot's chamber and cause it to sputter or stall.

Drip / pour-over — medium

Roughly 500-800 microns, comparable to regular sand. Drip machines and pour-over methods (V60, Chemex, Kalita Wave) rely on gravity alone with contact times in the 2-4 minute range, so this middle grind gives water enough time to extract properly without passing through too fast (under-extraction) or pooling and over-extracting. Pour-over specifically often sits toward the finer end of this range compared to auto-drip machines, since pour-over technique gives you more direct control over flow rate.

French press — coarse

Roughly 800-1000 microns, similar to coarse sea salt. French press uses a full immersion steep (grounds sitting directly in water for 4 minutes) with no paper filter — a fine grind here creates two problems: it extracts too fast during that long steep (bitterness), and fine particles slip through the metal mesh plunger into your cup, leaving noticeable grit at the bottom.

Cold brew — extra coarse

Roughly 1000-1200 microns, coarser than French press, more like chunky sea salt or coarse gravel. Cold brew steeps for 12-24 hours at room or refrigerator temperature with no heat to speed extraction, so a coarse grind prevents over-extraction and excessive bitterness over that long steep time, while still yielding a properly concentrated result given the extended contact time.

Why grind ranges aren't hard lines

These are starting points, not fixed rules — bean origin, roast level, and your specific grinder's burr geometry all shift the ideal setting a bit. Darker roasts are more porous and extract faster, so they often want a slightly coarser grind than a light roast at the same brew method. Treat these ranges as a place to start dialing in, not gospel.

Practical takeaway

• Turkish: powder-fine, under 100 microns.
• Espresso: fine, 200-400 microns — the narrowest tolerance of any method here.
• Moka pot: fine-medium, 400-500 microns.
• Drip/pour-over: medium, 500-800 microns.
• French press: coarse, 800-1000 microns.
• Cold brew: extra coarse, 1000-1200 microns.
• When in doubt, start in the middle of a range and adjust based on taste — sour and thin means go finer, bitter and harsh means go coarser.