French press, step by step
The French press is the most forgiving brewer with the worst reputation — forgiving because immersion hides small errors, poorly regarded because people grind fine, plunge violently, and let the last cup stew for twenty minutes. The official recipes from Blue Bottle, Stumptown and Counter Culture agree on the fixes: coarse grind, about 1:15, four minutes, gentle plunge, immediate decant.
Key takeaways
- Blue Bottle's recipe: 30 g coffee to 350 g water at 205–210°F, coarse "sea salt" grind, 4 minutes, ~20-second plunge.
- Stumptown's batch version: 56 g to 850 g (~1:15) at about 205°F, also 4 minutes.
- Counter Culture puts immersion methods near 1:15, with their own press recipe at 45 g to 800 g (~1:18) — anywhere in 1:15–1:18 is officially endorsed territory.
- Decant immediately: coffee left on the grounds keeps extracting and turns bitter.
The numbers up front
| Parameter | Value | Source (official) |
|---|---|---|
| Ratio | 1:15 standard (weak 1:18 / strong 1:13) | Stumptown; Counter Culture |
| Grind | Coarse — "sea salt" (Blue Bottle), "breadcrumbs" (Stumptown) | Blue Bottle; Stumptown |
| Water temperature | 205–210°F | Blue Bottle |
| Steep | 4:00 | Blue Bottle; Stumptown |
| Plunge | Slow, steady, ~20 seconds | Blue Bottle |
Sources, fetched 2026-11-16 (nofollow): Blue Bottle French press · Stumptown French press · Counter Culture ratios.
The recipe (1-2 cups, 350 g water)
- Coarse-grind 23 g of coffee (350 ÷ 15 = 23.3; round to 23.5 if your scale does halves). Blue Bottle's sea-salt comparison is the right mental image — visibly chunky, no dust.
- Add water at 205–210°F — genuinely hot; immersion with a coarse grind needs it. Pour over all the grounds, saturating evenly.
- At 1:00, stir the crust. Stumptown stirs at the one-minute mark; a spoon through the floating raft of grounds knocks everything into the brew.
- At 4:00, plunge for 20 seconds. Blue Bottle is specific: slow, steady pressure, about twenty seconds. Strong plunger resistance means the grind is too fine; a free-falling plunge means too coarse.
- Decant immediately into cups or a carafe. This is the step everyone skips and it is the difference between a clean second cup and a bitter one — the grounds stay in contact with liquid, and extraction doesn't respect your breakfast schedule.
Scaling to your press
Presses come in nominal 3/4/6/8-cup sizes, but the only number that matters is how much water you actually pour. Work from water weight: fill your press to its usual level on a scale, note the grams, and divide by 15 for the dose. An "8-cup" press filled to 1 kg wants about 66–67 g of coffee; our ratio calculator does the division and the rounding for any batch. If you brew less than a full press, expect slightly faster steeps — less thermal mass cools faster, so preheat the vessel.
Why French press tastes different
Immersion brewing keeps all the grounds in all the water for the whole brew, and the metal mesh lets oils and fine particles through that paper filters trap. That is the body and the richness — and, if you grind badly, the sludge. A burr grinder (see the grind chart) reduces fines dramatically. Temperature runs hotter than pour-over (Blue Bottle's 205–210°F) for exactly this reason: coarse particles in cooling water need every degree they can get, as we unpack in temperature by roast.
Troubleshooting, one variable at a time
- Sour or weak: grind one step finer first, then extend the steep to 5 minutes before touching the ratio.
- Bitter or muddy: grind coarser, confirm you decant at 4:00–4:30, and check that dark roasts aren't getting 210°F they don't need.
- Lots of sediment: fines problem — improve the grind or pour through the plunger screen gently rather than pressing hard.
- Second cup always worse: you didn't decant. It's the recipe, not you; it's on both official guides above.
Adjust to your beans
These recipes were published for the roasters' own coffees. Light roasts may want a tighter ratio (1:14) or an extra minute; dark roasts may want 1:16 and cooler water. One variable at a time — our strength guide sequences the moves.
Related reading
- Ratios by method — the full reference table
- AeroPress guide — immersion's other classic
- Common ratio mistakes — includes press-specific traps
- Scale vs scoop — the entry-level fix