Grind settings are reference points — your ideal grind depends on your specific grinder and coffee. Dial in by taste.
The right grind size makes or breaks your cup. As a simple rule: espresso needs a fine grind, drip coffee needs a medium grind, French press needs a coarse grind, and cold brew needs an extra coarse grind. Everything else falls somewhere in between. If you're pulling shots that taste bitter, go coarser. If your pour-over is sour and thin, go finer. This chart gives you the starting point — your palate dials it in from there. For a broader look at gear, visit our Home Coffee Gear hub.
The Complete Coffee Grind Size Chart
Use this as your reference starting point. Grind times are approximate and vary by grinder.
| Brew Method | Grind Size | Texture Reference | Grind Time (approx) |
|---|---|---|---|
| Turkish coffee | Extra fine | Flour / talcum powder | 40–60 seconds |
| Espresso | Fine | Table salt | 20–30 seconds |
| AeroPress (espresso-style) | Fine-medium | Between salt and sand | 15–25 seconds |
| Moka pot | Fine-medium | Table salt to coarse sand | 15–25 seconds |
| Pour-over (V60, Chemex) | Medium | Beach sand | 15–25 seconds |
| Drip coffee maker | Medium | Beach sand | 15–20 seconds |
| AeroPress (standard) | Medium | Beach sand | 10–20 seconds |
| Siphon | Medium-fine | Fine sand | 15–25 seconds |
| French press | Coarse | Sea salt / breadcrumbs | 8–15 seconds |
| Cold brew | Extra coarse | Raw sugar / coarse sea salt | 5–10 seconds |
Why Grind Size Matters
Grind size controls how quickly water extracts flavour compounds from coffee. Finer grinds expose more surface area, speeding up extraction. Coarser grinds slow it down. The goal is a balanced extraction — pulling enough sweetness, acidity, and body without tipping into either extreme.
Over-extraction (grind too fine, or contact time too long) produces a bitter, harsh, astringent cup. The water has pulled too many compounds from the coffee, including the ones that taste unpleasant. If your espresso is bitter or your pour-over tastes like it sat on the burner too long, start by going coarser.
Under-extraction (grind too coarse, or contact time too short) produces a sour, weak, watery cup. The water hasn't had enough time to pull the desirable compounds. If your espresso is sour and acidic, or your French press tastes thin, try going finer. The chart above gives you a calibrated starting point — from there, your palate and a few small adjustments get you to a great cup.
Grind Settings by Brew Method
Espresso
Espresso is the most grind-sensitive brew method. Start with a fine grind — the texture of table salt — and use 18–20g of coffee in your portafilter. Pull a shot and aim for 25–30 seconds of extraction time to yield approximately 36–40g of liquid espresso. If your shot pulls faster than 25 seconds and tastes sour, go finer by half a click. If it takes longer than 35 seconds and tastes bitter, go coarser by half a click. Tiny adjustments matter — ±0.5 clicks is often enough to transform the shot. For help choosing the right machine, see our guide to the best espresso machines.
Pour-Over (V60, Chemex)
Pour-over thrives on a medium grind — think beach sand. Start your brew with a 30-second bloom: pour twice the coffee weight in hot water (e.g. 30g water for 15g coffee), let it degas, then continue pouring in slow, steady circles. Total brew time should fall between 2:30 and 3:30 minutes. If it's draining too quickly and the cup is thin, go finer. If it's stalling and the coffee tastes bitter, go coarser.
French Press
French press needs a coarse grind — like coarse sea salt or breadcrumbs. A coarse grind is essential: it slows extraction during the 4-minute steep and reduces the silt that passes through the metal filter into your cup. After steeping, press slowly and pour immediately — don't let the coffee sit on the grounds after pressing, or it will keep extracting and turn bitter.
Drip Coffee Maker
A drip machine performs best with a medium grind, similar in texture to beach sand. The most important consistency tip here is using the same grind every time — pre-ground coffee varies batch to batch, which is why a dedicated burr grinder pays dividends even for simple drip. Look for our guide to the best coffee grinder for options at every budget.
Moka Pot
The moka pot sits between espresso and pour-over: use a fine-medium grind, roughly the texture of table salt to coarse sand. Fill the basket level — do not tamp. Tamping a moka pot compresses the grounds and can cause pressure to build dangerously. Place on medium-low heat and remove from heat as soon as you hear a gurgling hiss. A fine-medium grind prevents bitterness better than a full espresso grind, which can over-extract under moka pressure.
AeroPress
The AeroPress is uniquely versatile. For a standard AeroPress brew, use a medium grind and steep for 1–2 minutes before pressing. For an espresso-style concentrate, switch to a fine-medium grind and press immediately after a short steep (30–60 seconds). Inverted or upright, the AeroPress forgives experimentation — it's a great way to explore how grind size affects flavour without wasting expensive beans.
Cold Brew
Cold brew uses an extra coarse grind — like raw sugar or coarse sea salt — because it steeps for a very long time: 12–24 hours in cold or room-temperature water. A finer grind would over-extract over that duration, producing a harsh, astringent concentrate. The extra coarse grind yields a naturally sweet, low-acid concentrate. Dilute 1:1 with water or milk before serving.
Conical vs Flat Burr — Does It Affect Grind Size?
Yes, burr geometry affects not just the grind distribution but also where on the dial your ideal setting lands. Flat burr grinders tend to produce a more uniform, bimodal particle distribution — fines and boulders are reduced, and the grind is more consistent across the full range. This means you may find your ideal setting sits slightly coarser on a flat burr vs a conical, at the same extraction target.
Conical burr grinders are more common at the entry and mid-range level. They're quieter, retain less coffee, and still produce excellent results. The key takeaway: grind chart settings are a starting point, not an absolute. When you switch grinders, start fresh from the chart and dial in again. For a full breakdown of burr types and recommended models, see our guide to the best burr grinders.
How to Dial In Your Grind Size: A Simple 3-Step Process
Dialling in sounds intimidating but it's a straightforward iterative process. Here's the method:
- Step 1: Start with the chart setting for your brew method. Use the table above to set your grinder to the recommended grind size. Brew a cup using your standard dose, water temperature, and brew time.
- Step 2: Brew and taste — note if it's bitter or sour. Taste critically. Bitter and harsh means you're over-extracting (grind too fine, or brew time too long). Sour, sharp, and weak means you're under-extracting (grind too coarse, or brew time too short).
- Step 3: Adjust by small increments and re-brew. For espresso: adjust by ±0.5–1 click and pull another shot. For filter methods (pour-over, drip, French press): adjust by ±2–3 clicks and brew again. Keep one variable constant — change only grind size until you've found your sweet spot, then lock it in.
For a deeper dive into the home espresso workflow, see our home espresso guide.
Frequently Asked Questions
What grind size is best for espresso?
Espresso requires a fine grind — similar in texture to table salt. On most grinders, this falls toward the finer end of the dial. Aim for a shot time of 25–30 seconds with an 18–20g dose. Adjust by small increments (half a click at a time) until the shot pulls in the right window and tastes balanced rather than bitter or sour.
What grind size for a French press?
French press needs a coarse grind — roughly the texture of coarse sea salt or breadcrumbs. A coarse grind is essential for a 4-minute steep: finer grinds over-extract and produce a bitter, gritty cup. Coarse grounds also reduce the amount of sediment that passes through the metal filter.
Can I use a blade grinder for espresso?
Not effectively. Blade grinders chop coffee randomly rather than grinding it consistently, producing a wide range of particle sizes in every batch. For espresso, uniform particle size is critical — inconsistent grinds lead to uneven extraction, channelling in the puck, and shots that taste simultaneously bitter and sour. A burr grinder is the minimum requirement for espresso.
Does fresher coffee need a coarser grind?
Yes, generally. Freshly roasted coffee (within a few days of roast) is still releasing CO2, which interferes with extraction and can cause shots to run fast. Many baristas go slightly coarser with very fresh coffee and gradually dial finer as the beans degas over 7–14 days post-roast. Once the coffee is a few weeks old, you may need to go slightly finer to compensate for reduced CO2.
What happens if my espresso grind is too fine?
A grind that's too fine will slow the shot — you may see the extraction stall or run beyond 35–40 seconds. The resulting espresso will taste bitter, harsh, and astringent. In extreme cases (especially with heavy tamps), the puck can choke the machine entirely and no liquid passes through. Correct by going coarser in small increments until the shot runs in the 25–30 second window.
How often should I recalibrate my grind setting?
Recalibrate when you: switch to a new bag of coffee (different roast, origin, or freshness level), change your dose weight, switch grinders, or notice your shots drifting out of the target window without any change on your end. Temperature and humidity can also shift your ideal setting slightly — dialling in takes about 30–60 seconds once you know your grinder's behaviour.