Fair-trade certification does not change how you grind your coffee, so the answer for a French press is the same as for any beans: grind coarse, about the texture of coarse sea salt. Brewing guides from Baratza, Royal Coffee, and the National Coffee Association all recommend a coarse grind for French press, with a steep time of about 4 minutes. If your cup tastes bitter or muddy, your grind is probably too fine. If it tastes weak or sour, go a little finer.
The Short Answer: Coarse, Like Coarse Sea Salt
Grind your fair-trade beans coarse, so the particles look like coarse sea salt or raw sugar. Baratza, a leading grinder maker, recommends a coarse grind specifically for French press brewing. Royal Coffee’s brewing guide and the National Coffee Association (NCA) agree.
Use a burr grinder rather than a blade grinder whenever you can. Blade grinders smash the beans into uneven pieces, and the dusty fines slip through the metal mesh screen and muddy your cup.
A quality conical or flat burr grinder, like the Baratza Encore, produces consistent coarse particles with minimal fines. A hand grinder such as the 1Zpresso JX works too if you do not mind some effort.
- Grind range: 250 to 1200 microns (40 settings)
- Burr type: 40 mm conical steel burr
- Dosing: 8 oz hopper, front-mounted grounds bin
That coarse, even texture is the whole goal. Everything else in this recipe supports it.
Why Fair Trade Does Not Change the Grind
Here is the part that confuses people. “Fair trade” is about the terms of trade between producer cooperatives and buyers, not about the beans themselves. Fairtrade International, the global standard-setting body for the certification, applies its standards to pricing, labor, and community investment, while the physical grading of the green coffee follows standard international practice.
The grind that suits your beans is set by roast level, freshness, and brewer, not by the certification. Most fair-trade lots are Arabica grown by smallholder cooperatives, and they brew exactly like any other Arabica of the same roast.
So if you already know how to grind for French press, you know how to grind fair-trade coffee for French press. The fair-trade label changes who gets paid, not what happens in your grinder. And freshness still matters on both sides, so it is worth checking how fresh your fair-trade beans should be before you brew.
Your Target Grind Size, By Roast Level
The baseline is coarse, with a texture like coarse kosher salt. Specialty coffee education sources describe an ideal French press grind as roughly 1,000 to 1,400 microns, which is the coarsest end of the standard brewing spectrum.
Your roast level can nudge that setting. Lighter roasts extract more slowly, so a slightly finer (medium-coarse) setting often helps them, while darker roasts do better even coarser.
Use the table below to pick your starting grind setting and steep time by roast level.
| Roast Level (Starting Point) | Grind Texture | Steep Time |
|---|---|---|
| Light roast | Medium-coarse, slightly finer than sea salt | 4 to 5 minutes |
| Medium roast | Coarse, like kosher salt | About 4 minutes |
| Dark roast | Very coarse, like rough sea salt | 3.5 to 4 minutes |
These are starting points to dial in by taste, not fixed rules. The next section shows you how.
Why Coarse Works in a French Press
A French press is an immersion brewer, meaning the grounds sit in the full volume of water for the whole steep, usually around 4 minutes. That long contact time means water keeps pulling flavor out of the coffee the entire time.
The metal mesh filter on the plunger does not catch fine particles the way paper does. Grinding coarse keeps the extraction slow and steady and leaves fewer tiny bits to float into your cup.
The Specialty Coffee Association (SCA) publishes immersion brewing parameters that French press brewing follows: a coffee-to-water ratio of 55 grams per liter (give or take), and water at about 200°F (93°C) at the point of contact with the grounds. A practical home starting point is a 1:15 to 1:16 ratio, which for a standard 34 oz (1 liter) press means about 60 grams of coffee to 900 to 960 grams of water. A scale like the OXO Brew 0.1 g scale makes that easy to hit.
- Resolution: 0.1 gram
- Capacity: up to 6.6 lbs (3 kg)
- Extras: built-in timer, stainless platform
Coarse grind, immersion time, and ratio work together as a set. Change one and you may need to taste and adjust the others.
How to Dial In Your Grind by Taste
Your tongue is the best calibration tool you own. After each pot, taste, then change one thing on the next brew.
Bitter, harsh, or sludgy coffee with sediment in the bottom can indicate a grind that is too fine. The tiny particles over-extract during the steep and sneak through the mesh.
Sour, thin, or weak coffee can indicate a grind that is too coarse. There is less surface area for the water to pull flavor from, so the cup comes out under-extracted.
A useful synthesis: resist the urge to fix a weak cup by adding more coffee. If the taste is sour or hollow, the grind or the steep time, not the dose, is usually what needs adjusting, and a small step finer will often get you there. Adjusting these three variables for drip coffee works the same way, just with a finer target.
Also grind right before you brew. Ground coffee goes stale and loses its aroma within minutes to hours, so fresh-grinding right before the steep gives you the most control.
Do You Ever Need a Different Grind for Fair Trade?
Only because of roast level and bean condition, never because of the label. Fairtrade certification is socioeconomic, and Fairtrade Certification standards do not alter the physical structure or brewing behavior of the bean.
Many fair-trade cooperative lots are medium-to-dark roasted single origins, so coarse is the right starting point for almost all of them. Grind coarse, follow the table above, and taste your way to your personal setting.
If you brew the same beans other ways, the target changes with the method, not the certification. Espresso needs a much finer fair-trade grind, and cold brew goes even coarser than French press.
Conclusion
Grind your fair-trade coffee coarse for French press, roughly the texture of coarse sea salt, and steep it about 4 minutes at a 1:15 to 1:16 ratio. The certification never changes the grind, so start there and adjust by taste, one small step at a time.