Grind your Kenyan coffee coarse, about the texture of rough sea salt, for a French press. Coarse particles keep the bright, fruity acidity that Kenyan beans are known for from turning harsh and bitter in the long steep. Start with a ratio of 1:15 to 1:16 coffee to water, a 4 minute steep, and water just off the boil.
Kenyan coffee means beans grown in Kenya, usually at high elevations in regions like Nyeri and Kirinyaga. It does not refer to a roast level or a brand, and the grind advice below works for any roast of genuine Kenyan beans. Varietals like SL28 and SL34 are grown at high altitude, which produces dense, hard beans.
The Direct Answer: Coarse, Like Sea Salt
A coarse grind is the standard recommendation for French press across specialty coffee sources. The Coffee Chronicler’s French press brewing guide recommends coarse grounds to avoid over-extraction and excess sediment, and Blue Bottle Coffee’s brewing guide agrees. Starbucks’ own French press instructions also call for a coarse grind.
In practical terms, coarse looks and feels like rough sea salt or breadcrumbs. If your burr grinder shows micron readings, immersion brewers commonly land somewhere around 800 to 1200 microns as a rough starting region, though this is a general industry estimate rather than one fixed number.
A quality burr grinder matters more than the exact setting. Blade grinders smash beans into a mix of dust and chunks, and the dust passes straight through the mesh filter into your cup.
If you need a capable grinder for French press and other methods, the Baratza Encore conical burr grinder is a solid home choice with distinct numbered settings.
Use the Table Below to Set Up Your Brew
French press is an immersion method, so grind size works together with steep time, ratio, and water temperature. These starting values come from specialty brewing guidance, including the Specialty Coffee Association’s brewing standards for water temperature and brew ratio.
| Parameter | Starting Value | Notes |
| Grind size | Coarse (sea salt texture) | Choose the coarsest setting that still looks even |
| Coffee to water ratio | 1:15 to 1:16 by weight | About 30 g coffee to 450 to 480 g water |
| Water temperature | 94 to 96°C (201 to 205°F) | Just off the boil; dense light roasts extract best at the higher end |
| Steep time | 4 minutes | Extend toward 5 minutes for a stronger, cleaner cup |
Water temperature and grind size interact, but temperature is its own topic. Keep water just off the boil and adjust grind first, because grind is the variable you asked about and the easiest one to taste.
For repeatable results, weigh both your coffee and your water on a gram scale with 0.1 g resolution instead of using scoops. Bean density varies between lots and roasts, which changes how much a scoop actually weighs.
Why Kenyan Coffee Wants Special Attention
Kenyan coffees are typically bright, fruity, and acidic, with notes like blackcurrant, grapefruit, and berry. World Barista Champion James Hoffmann, author of The World Atlas of Coffee, notes that high-altitude Kenyan beans have dense cell structures that generate distinct fines when ground.
Dense means the beans fracture more irregularly in the grinder, producing more tiny particles than softer beans would at the same setting. Those fines slip through the metal mesh filter and add sediment and bitterness to bright coffee that already leans acidic.
This is why many brewers choose the coarser side of coarse for Kenyan French press, not medium-coarse. The extra clarity protects the origin’s lively acidity instead of muddying it. Bean freshness matters here too, and you can check how fresh your Kenyan beans should be for French press before you brew.
If the roast is very light, expect to brew slightly finer or longer, because dense, lightly roasted Kenyan beans need more heat and contact time to extract their sweetness. That is the one case where a slightly tighter grind helps more than a coarser one.
A precise, controllable pour matters as well. A gooseneck electric kettle with temperature control lets you hit the 94 to 96°C range without guessing.
Troubleshooting by Taste
If the cup tastes sour, thin, or hollow, that can indicate under-extraction. Grind slightly finer or extend the steep a little, one change at a time.
If it tastes bitter, dry, or chalky, that can indicate over-extraction or too many fines in the cup. Grind slightly coarser and avoid plunging hard, since vigorous agitation stirs settled particles back into the liquid.
A muddy cup with heavy sediment usually means the grind drifted too fine or the mesh filter is clogged. Rinse the filter screen between brews so it keeps catching particles the way it should.
If the coffee smells great but tastes weak even after 4 minutes, the issue is rarely the beans. Your dose is probably low for the water volume, so tighten the ratio toward 1:15 before touching the grinder.
A Technique Worth Trying: The Crust Skim
Hoffmann’s modern French press method skips the hard plunge entirely. Pour, wait 4 minutes, then stir the floating crust gently so grounds sink, and scoop off the foam on top.
Rest the lid’s mesh screen just above the liquid and pour through it without pressing to the bottom. Letting particles settle instead of pressing them down gives a cleaner mouthfeel, which flatters Kenyan coffee’s fruit clarity.
This pairs naturally with a screen-style press, and a stainless steel French press holds heat through a longer settle time better than thin glass.
Setting Your Own Grinder
Not every grinder labels its settings the same way, so translate by texture rather than by number. On a Baratza Encore, coarse French press settings sit in the upper end of the range, around settings 24 to 28 per the maker’s guidance. On hand grinders with clicked adjustments, count clicks toward coarse until particles look like rough sea salt.
Grind a small test batch before committing your whole dose of Kenyan beans. A 15-second visual check against a sea salt reference on white paper saves a whole wasted brew.
Keep in mind that espresso needs a much finer grind, and drip brewing sits in the middle, so do not carry this French press setting over to other brewers.
Conclusion
Grind Kenyan coffee coarse, at a sea salt texture, for French press, and brew 30 g of coffee with 450 to 480 g of water at 94 to 96°C for 4 minutes. Grind slightly finer only if the cup tastes sour, and slightly coarser if it turns bitter or muddy. Your reward is a clean, bright cup with all the blackcurrant sweetness Kenya is famous for.
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