Match the grind to the brew time: fine grinds for fast, pressurised brews like espresso, medium for drip and pour over, coarse for long steeps like French press and cold brew. Get that pairing right and most "bad coffee" problems never happen. Get it wrong and no bean, ratio or technique will save the cup.
This is the chart we wish came taped to every grinder and every brewer. Bookmark it, then read on for why it works and how to adjust when a cup tastes off.
The short version
- Finer grind = more surface area = faster extraction. Coarser = slower.
- As a general principle, short-contact brews use finer grinds and long-contact brews use coarser ones.
- Sour and weak usually means too coarse. Bitter and harsh usually means too fine.
- Change one step at a time, and only one variable at a time.
- No grinder? Every FARCOFF coffee comes in six grind options, each matched to a brewer.
Why does grind size matter so much?
Because grind size controls how fast water can pull flavour out of coffee. Grinding finer exposes more of the coffee to the water, so extraction speeds up; grinding coarser slows it down. Every brewer gives the water a certain amount of contact time — thirty seconds for espresso, a few minutes for a pour over, four minutes for a French press, many hours for cold brew — and the grind has to suit that window.
As a general principle, grind too coarse for a short-contact brewer and the coffee under-extracts: the cup comes out thin, sour and weak. Grind too fine for a long-contact brewer and it over-extracts, pulling the cup towards bitterness and harshness. There are brewers that bend the rule — the AeroPress happily runs fine or coarse depending on the recipe — but the principle explains most disappointing coffee, and we wrote a whole guide to fixing sour and bitter cups around it.
The grind size chart
| Grind | Feels like | Best for | FARCOFF grind option |
|---|---|---|---|
| Coarse | Rough breadcrumbs, sea salt | French press, cold brew | French Press |
| Medium | A little coarser than table salt | Drip and batch filter machines | Filter |
| Medium-fine | Table salt | Pour over cones | Pour Over |
| Fine-ish, adjustable | Between table salt and caster sugar | AeroPress | Aeropress |
| Fine | Caster sugar | Espresso machines, moka pots | Espresso |
| Extra fine | Flour | Turkish coffee | Grinder territory — see below |
Descriptions are a starting point, not a law. Grinders vary, brewers vary, and taste settles the argument. Start where the chart says, then adjust by what is in the cup.
What grind should you use for espresso?
Fine — and then dial it in. Espresso pushes hot water through a compressed puck in around half a minute, so it needs the finest grind of any everyday brewer. It is also the least forgiving: a small change in grind visibly changes how fast the shot runs. If shots gush out fast and taste sour, go finer. If they drip out slowly and taste harsh, go coarser. One step at a time, changing nothing else between shots.
What grind for a pour over or filter machine?
The middle of the range. A batch or drip machine does the pouring for you over several minutes and likes a medium grind, a little coarser than table salt — our batch brew guide runs the full method. A manual pour over cone drains a little faster and rewards a slightly finer grind than the machine, which is why the chart splits Filter and Pour Over into two entries. If your pour over tastes thin, tighten the grind one step before touching anything else.
What about the AeroPress?
Anywhere from medium-fine down, depending on the recipe. The AeroPress is the most flexible brewer on the list — short steeps with a firm press like it finer; longer steeps run happily coarser. If you are not chasing a specific recipe, start medium-fine and adjust to taste. The Aeropress grind on our bags sits in that starting zone.
What grind does a French press need?
Coarse — the coarsest on the chart. Four minutes of full immersion wants big, even particles that extract gently and stay behind the mesh when you press. Fine grounds slip through the screen and keep extracting in the cup. The full method, ratio and the crust trick are in our French press guide, and the same grind is the right one for cold brew: the French Press grind is the coarsest of our six.
What grind for a moka pot?
Fine, but not quite espresso-machine fine. A moka pot brews under gentle steam pressure and most recipes land just coarser than a true espresso grind. If you grind at home, start at your espresso setting and step slightly coarser if the cup turns harsh. If you are ordering ground coffee, our Espresso grind is the nearest fit of the six — start there and let taste decide.
What about Turkish coffee?
Turkish coffee wants a flour-like powder finer than any standard grind, traditionally from a dedicated Turkish mill. None of our six options goes that fine, so this one genuinely needs its own grinder — order Whole Beans and grind at home.
No grinder? Order the grind instead
A good grinder is a fine thing, but it is not the price of entry. Every FARCOFF coffee is available in six grind options — Whole Beans, Espresso, Filter, Pour Over, French Press and Aeropress — so you can order the exact grind your brewer wants and skip the hardware entirely. Pick the option named after your brewer and the chart above has already been applied for you.
Try it with FARCOFF
The easiest way to put the chart to work is on coffee freshly roasted. Around the World is three 250g bags — Colombia, Brazil and Ethiopia — in whichever of the six grinds suits your kitchen, each freshly roasted in St Peters, Sydney. Pick your brewer's grind, brew all three the same way, and compare how the three coffees taste.
Freshly roasted. Roast date on every bag.