Moka Pot Grind Size: Settings for 12 Grinders
480 µm for a washed coffee: 16 clicks on a Comandante C40, 13 on a Timemore C2, 39 on a Turin DF54. The Moka Pot's medium-fine grind, grinder by grinder.
The Moka Pot wants a medium-fine grind: finer than V60, quite a bit coarser than espresso. The reason is pressure: a Moka Pot pushes water with very little force compared to an espresso machine, so an espresso grind chokes it (burnt, bitter cup) and a filter grind lets the water rush through without extracting (thin, watery cup).
What grind size for a Moka Pot
The Moka Pot's window runs from 450 to 570 microns. Inside it, the starting point depends on the coffee's process:
| Process | Starting point |
|---|---|
| Washed | 480 µm |
| Honey / wet-hulled | 510 µm |
| Natural / anaerobic | 540 µm |
Then adjust for roast: light roasts stay at the starting point; medium roasts go about +30 µm (a touch coarser); dark roasts +60 µm. Dark roasts are more soluble and porous: they extract faster, and ground fine they tip into bitterness easily.
The setting for each grinder
The same window, translated to each grinder's dial. The range covers processes and roasts; each starting point is the one that grinder's guide recommends (not every guide starts from the same roast), so do the fine roast and process adjustments from the linked guide: the exact detail lives there, method by method.
| Grinder | Moka Pot range | Starting point |
|---|---|---|
| Comandante C40 | 15–19 clicks | 16 |
| Timemore Chestnut C2 | 12–16 clicks | 13 |
| Timemore C3S Pro | 11–16 clicks | 12 |
| 1Zpresso JX-Pro | 2.1.2 – 2.7.0 | 2.3.0 |
| 1Zpresso K-Ultra | 0.6.3 – 0.7.5 | 0.6.9 |
| 1Zpresso ZP6 | 0.1.8 – 0.2.9 | 0.2.3 |
| Baratza Encore | 9–13 | 10 |
| Baratza Encore ESP | 9–11 | 10 |
| Fellow Ode Gen 2 | 3.1–4.1 | 3.2 |
| Fellow Opus | 3.2–4.2 | 3.3 |
| Eureka Mignon Specialità | 5.5 to 1+1 | 1+0 |
| Turin DF54 | 35 to 56 | 39 |
On manual grinders you count clicks from zero; on electric ones it's the dial position. The special notations (the JX-Pro's Rotation.Number.Tick, the Specialità's turns) are explained in each guide. If yours isn't in the table, aim for medium-fine: to the touch, a bit finer than table salt, well short of flour.
Don't see your grinder in the table?
Dose and water: the pot decides
Unlike a V60, a Moka Pot's recipe is set by the pot itself: the basket filled without tamping (12 to 25 grams depending on the model) and water up to the safety valve (100 to 400 ml). The ratio settles on its own, usually between 1:7 and 1:12. Don't chase an exact ratio by half-filling the basket: a basket with air in it channels and extracts unevenly. And fill the boiler with hot water, not cold; the why is below, in the questions.
Adjusting by taste
One change at a time, then taste:
- Bitter, burnt, sputtering: grind one step coarser. If you're already at the edge of the range, lower the heat: in a Moka Pot, heat matters as much as grind.
- Watery, sour, thin: grind one step finer, or check that the basket is full and leveled.
- Good until the end, then bitter: pull it off the heat at the first gurgle; the tail of the cycle is the part that burns.
With the setting from the table and the heat under control, the Moka Pot is one of the most repeatable brews there is: same water, same basket, same grinder setting, same cup.
Every coffee is different. Your grind should be too.
Coffee Master scans any specialty coffee bag, reads the origin, roast, and process, and generates a Moka Pot recipe with the exact setting for your grinder and that specific bean.
Frequently asked questions
Can I use an espresso grind in a Moka Pot?
Better not. A Moka Pot brews at a fraction of an espresso machine's pressure, and a grind that fine chokes the flow: the coffee comes out late, burnt, and bitter. The Moka Pot wants medium-fine, a clear step coarser than espresso.
Should you tamp the coffee in the basket?
No. Fill the basket to the top and level it with your finger or a gentle tap, without compacting. Tamping raises resistance and does the same thing as grinding too fine: a slow, bitter extraction.
Cold or hot water in the boiler?
Hot, just boiled. Start from cold and the coffee spends several minutes cooking above the boiler while the water heats up, and that slow warming adds bitterness. With hot water the cycle starts sooner and the cup comes out cleaner. One warning: the pot is burning hot from the first second, so assemble it with a towel and screw it together carefully.
High or low heat?
Medium-low. On high heat the water shoots through and scorches the coffee at the end of the cycle. When the flow starts to gurgle, take the pot off the heat: whatever comes out after that isn't helping.
Does store-bought coffee labeled for moka work?
As a starting point, yes: it usually sits in the right range. What you lose is freshness and the ability to adjust. If the cup tastes flat or bitter with pre-ground coffee, the fix is almost always grinding at home and dialing one step.