It is the setting that decides everything. Before the choice of coffee, before water temperature, before even the dose: if the grind does not match your method, no cup will be good. Here is how to choose, and how to correct.
What the grind actually controls
Grinding a bean means increasing the surface exposed to water. The finer the grind, the greater that surface, the faster water extracts — and the more it is slowed by the coffee bed.
The whole craft lies in that balance. Water must stay in contact long enough to extract sugars and aromatics, but not so long that it also draws out the bitter, astringent compounds that come last.
Every brewing method has its own contact time. An espresso runs for twenty-five seconds, a French press for four minutes. Short contact calls for a fine grind; long contact for a coarse one. That is the entire logic.
The three grinds we offer
Espresso grind — the finest
For pump espresso machines and café group heads. The texture is like flour with a faint grit to it, almost powdery.
Water passes under pressure, in roughly twenty-five to thirty seconds for a double shot. That fineness is essential: with a coarser grind, water would rush through and give a thin, sour, bodyless shot.
It is also the least forgiving grind. A minute change alters the result, which is why baristas adjust their grinder several times a day.
Filter grind — the middle ground
For electric drip machines, V60, Chemex and pour-over methods. The texture is close to beach sand or caster sugar.
Extraction runs from two and a half to four minutes depending on volume. This is the most versatile and most forgiving grind: if you were to choose only one for varied home use, this would be it.
French press grind — the coarsest
For French presses and immersion methods. The texture is like coarse salt or breadcrumbs.
The coffee steeps for four minutes before being filtered through a metal mesh. Two reasons demand a coarse grind: contact time is long, so a fine grind would over-extract immediately; and the mesh would let fine particles through, giving a cloudy, muddy cup.
What about the stovetop moka pot?
The moka pot, widely used, sits between espresso and filter. In practice, the espresso grind works well as long as you do not tamp the coffee in the basket. If the cup comes out bitter, move to the filter grind.
The correction table
Change one setting at a time, or you will not know what worked.
- Bitter, dry, astringent on the finish — water stayed in contact too long: the grind is too fine for your method. Go one step coarser.
- Sour, flat, watery, no length — water passed too quickly: the grind is too coarse. Go one step finer.
- Too strong or too weak — that is not the grind, it is the dose. Count roughly 60 g of coffee per litre of water, as explained in our extraction guide.
Should you prefer whole beans?
If you have a grinder, yes, without hesitation. Ground coffee loses most of its volatile aromatics within minutes, and the gap against a fresh grind is immediately audible in the cup. It is the single investment that changes a cup the most, ahead of the choice of coffee itself.
If you do not have one, coffee ground to order remains vastly better than an industrial coffee ground months ago. The real precaution lies elsewhere: order a size that matches your consumption, and store it properly. Our five storage mistakes do more damage than the grind ever will.
Processing matters too
At an equal grind, a natural coffee — richer in sugars — saturates faster than a washed one and turns heavy if pushed. On those coffees, stay one step coarser than your usual setting. Our article on processing methods explains where that difference comes from.
Ready to choose? All of our origins are available as ground coffee, in all three grinds and at the same price, or as whole bean coffee if you grind your own.