How to Make French Press Coffee: The Complete Guide
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Quick answer
For a standard 12 oz French press, use 23 g of coarsely ground coffee to 350 g of water at 195–205°F — a 1:15 ratio. Steep four minutes, break the crust, press slowly, then pour it all out immediately so it stops extracting.
French press is one of the oldest, most forgiving brewing methods — and one of the most frequently done wrong. Done right, it produces a bold, full-bodied cup that immersion brewing does better than almost anything else. Done wrong, it's bitter, muddy, and harsh.
Here's how to do it right.
What You Need
- A French press (glass or stainless, any size)
- Whole bean coffee, coarsely ground
- Hot water — 195 to 205°F, just off the boil
- A gram scale (strongly recommended)
- A timer
The Right Coffee for French Press
French press is a full-immersion method — grounds sit in contact with water for the entire brew. This amplifies body and richness, making it an ideal match for medium and dark roasts. The heavy mouth-feel of a dark roast in a French press is something other brewing methods can't replicate.
Light roasts work too, but expect a different cup — brighter, more acidic, less thick. Our dark and medium roasts are specifically suited to French press. The fuller body of the bean translates beautifully with immersion brewing.
Grind Size Matters More Than Almost Anything
Coarse. Always coarse for French press.
A coarse grind means larger particles, which means slower extraction. This matches the 4-minute brew time of French press. Fine or medium grinds extract too fast in immersion brewing — the result is bitter, over-extracted coffee with a gritty texture from particles that slip through the mesh filter.
Aim for a grind that looks like coarse sea salt. A blade grinder makes consistent coarse grinding nearly impossible — a burr grinder is worth the investment.
The reason is simple: a blade grinder doesn't grind, it smashes, so you end up with boulders and fines in the same batch. The boulders under-extract and taste like nothing. The fines over-extract, taste bitter, and slip through the mesh into your cup. A burr grinder fixes both problems permanently, which is why it's the one upgrade we push before any other.
The Recipe
Ratio: 1:15 — one gram of coffee to every 15 grams of water. For a 12oz cup: approximately 23g coffee to 350g water.
Water temperature: 200°F is ideal. Boil the water and let it sit for 30 to 45 seconds before pouring.
Step-by-Step
- Preheat your French press by rinsing it with hot water. Pour it out before brewing — this prevents temperature drop and keeps the extraction consistent.
- Add your coarsely ground coffee.
- Start your timer. Pour in about twice the weight of water as coffee — for 23g of coffee, pour about 46g of water first.
- Wait 30 seconds. This is the bloom. Fresh coffee will bubble and expand as CO2 releases. Stale coffee will barely react. If nothing happens, your coffee needs to be fresher.
- Pour in the remaining water. Give the grounds a gentle stir.
- Place the lid on top with the plunger up. Wait. Total brew time should be 4 minutes from first pour.
- At 4 minutes, press the plunger slowly and evenly. Don't force it. If it's very difficult to press, your grind is too fine. If it offers no resistance, your grind is too coarse.
- Pour immediately. Coffee left on the grounds will continue extracting and become bitter.
Two optional moves are worth knowing. Breaking the crust: around the three-minute mark the grounds form a floating raft — nudge it with a spoon so it sinks, which evens out the extraction. Skimming: once the crust is broken, lift the foam and floating fines off the surface with a spoon. It costs nothing and buys a noticeably cleaner cup. Both count as agitation, so if you adopt them, adopt them every time. Agitation you only do sometimes is just another variable you can't control.
French Press Ratios by Carafe Size (12 oz, 17 oz, 34 oz, 51 oz)
Nobody brews "a cup." You brew whatever your carafe holds. Below is the same 1:15 ratio from the recipe above, scaled to the four sizes French presses actually come in. Weigh if you can — tablespoons are a fallback, not a standard, because a tablespoon of coarse grounds varies with roast level and bean density.
| Carafe size | Coffee (grams) | Coffee (tablespoons, approx.) | Water | Steep time |
|---|---|---|---|---|
| 12 oz (350 ml) | 23 g | 3.5 tbsp | 350 g | 4:00 |
| 17 oz (500 ml) | 33 g | 5 tbsp | 500 g | 4:00 |
| 34 oz (1 L) | 67 g | 10 tbsp | 1,000 g | 4:00 |
| 51 oz (1.5 L) | 100 g | 15 tbsp | 1,500 g | 4:00–4:30 |
Fill to just below the metal band rather than to the brim — the grounds take up room, and the plunger needs somewhere to go. If you routinely brew a 51 oz press, preheat it properly: a big glass carafe pulls heat out of the water fast, and a cold start under-extracts. For the arithmetic behind every other brew method, our coffee-to-water ratio guide has the full charts.
If the cup still tastes thin, don't start throwing scoops at it at random. Tighten the ratio deliberately — 1:13 or 1:14 instead of 1:15 — and read how to brew strong coffee without brewing bitter coffee first. Strength and over-extraction are different problems with different fixes.
Is French Press Coffee Bad for You? Cafestol and Cholesterol Explained
This is the question people actually type into search, so here's the straight version. Coffee oils carry two diterpenes: cafestol and kahweol. A paper filter traps most of them. A metal mesh filter — the entire point of a French press — does not, which is precisely why the cup tastes so full-bodied.
Cafestol has been shown to raise LDL cholesterol. The effect is dose-dependent, so a cup a day is a very different proposition from a litre a day, and unfiltered brews — French press, moka pot, boiled coffee — sit at the higher end of the range. If you drink a lot of it and you're already watching your cholesterol, the fix is simple: pour the pressed coffee through a paper filter before drinking it, or alternate with pour over, which filters those oils out by design.
Everything else about the cup is unchanged — same beans, same caffeine, same ratio. This is general information rather than medical advice. If cholesterol is a live issue for you, ask your doctor, not a coffee blog with a skull on it.
How to Clean Your French Press (and Why Oily Residue Ruins the Next Cup)
Those same oils are the reason a neglected French press makes bad coffee. Coffee oil goes rancid. It coats the mesh, the spring, the cross plate and the underside of the lid, and every brew after that picks up a stale, faintly fishy edge. Fresh beans cannot save a dirty press.
- Let the grounds cool, then scoop or knock them into the bin or the compost — not down the drain, unless you enjoy meeting plumbers.
- Rinse the carafe, then wash it with warm water and a drop of dish soap. Soap is fine. Rancid oil is not.
- Every week or two, unscrew the plunger assembly — mesh screen, cross plate, spiral plate — and wash the parts separately. This is where the residue actually hides.
- For a deep clean, soak the disassembled parts in hot water with powdered brewer cleaner or a splash of white vinegar, then rinse thoroughly.
- Air dry everything completely before reassembling. Trapped moisture plus coffee oil equals a smell you will eventually taste.
If your coffee has tasted flat for weeks and you've been blaming the beans, check the mesh first.
Troubleshooting
Bitter: Grind is too fine, brew time too long, or water too hot. Try a coarser grind first.
Weak or watery: Too much water, too little coffee, grind too coarse, or water not hot enough.
Muddy texture: Inherent to French press, but reduced by a coarser grind and by letting coffee sit 1 minute after pressing before pouring — grounds will settle.
French press rewards fresh coffee more than almost any other method. Because there's no paper filter absorbing oils, you taste the full character of the bean. Roast date matters here.
French Press FAQ
How much coffee do I use in a French press?
One gram of coffee per 15 grams of water — 23 g to 350 g for a standard 12 oz press, roughly 3.5 tablespoons if you have no scale. Scale it up with the carafe-size table above.
Can I use pre-ground coffee in a French press?
You can, but most supermarket pre-ground is cut for drip — medium-fine, which over-extracts in immersion and sends fines straight through the mesh. If you buy ground, buy it ground coarse for French press. We'll do that for you at checkout: every bag of Bean Reaper coffee ships whole bean or ground.
Why is my French press coffee muddy or silty?
Fines. Grind coarser, use a burr grinder rather than a blade grinder, skim the surface after breaking the crust, and let the coffee settle for a minute after pressing before you decant. Never leave brewed coffee sitting on the grounds.
Should I stir French press coffee?
Yes — one gentle stir after the main pour to wet any dry grounds, and optionally break the crust at the three-minute mark. Just do the same thing every brew. Inconsistent agitation is the most common reason two brews from the same bag taste different.
How long should French press steep?
Four minutes from the first pour, then press and decant. Longer steeping is a blunt way to chase strength and usually delivers bitterness instead — adjust the dose or the grind rather than the clock.
Can I make cold brew in a French press?
Yes, and it's the best second job the device has. Same immersion principle, extra-coarse grind, cold water, and 12 to 18 hours instead of 4 minutes. Full method in our cold brew guide.
What to Brew
Immersion flatters big, heavy roasts, so start there: Death Row for dark and bittersweet, Crossroads for a balanced medium, Bone Yard if you want light roast or decaf. Every bag is $21.99, 100% specialty Arabica, roasted after you order and shipped within two business days, whole bean or ground. Orders over $45 ship free domestically, and there's a 30-day money-back guarantee — not that the bag usually survives that long.
Best Bean Reaper coffee for French press: Dead Man’s Brew — a Brazilian dark roast with the syrupy, bittersweet-chocolate body that four minutes of immersion was made for. Prefer your dark cup with softer edges? Afterlife brings the same depth with a smoother, caramelized finish. Both are $21.99, roasted after you order.
Shop Bean Reaper coffee — roasted after you order, ideal for French press
Related: Light vs. Medium vs. Dark Roast | Why Fresh Coffee Tastes Better | Pour Over Guide | Espresso at Home | Cold Brew Guide | Coffee-to-Water Ratio
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