French press coffee should be strong, dense, and heavy in the best way. It’s one of the few brewing methods where the coffee grounds stay in direct contact with the water the entire time, which is exactly why getting your ratio right matters so much here. Get it wrong and you’ll end up with something thin and sour, or so heavy it’s almost chewy.
So let’s answer the question that brought you here: What is the best coffee to water ratio for French press?
The best ratio for a French press is 1:17.
To get the most out of your French press, you can work with three go-to ratios. The first is the most common one for everyday drinking: a 1:17 ratio. If you want something more robust, step up to 1:13. And if you’re a true coffee freak who wants a cup that could stand a spoon up in it, there’s 1:11.
We’ll walk you through exactly how to measure any of these ratios below, hand you a full chart so you never have to do math before your first cup, and show you where the ratio can go wrong.
The French Press Ratio Calculator
Let’s talk about how you actually measure your French press coffee to water ratio. It’s a simple calculation, but knowing it (or better yet, letting a tool do it for you) is what separates a decent cup from a genuinely great one, every single time.
For the French press, the ratio works across a range. It runs from 1:10 on the strongest end to 1:17 on the lightest. That’s why you’ll see some guides call 1:10 the strongest ratio instead of 1:11, or list 1:16 as the most common ratio instead of 1:17. These numbers are all close, and the “right” one ultimately comes down to your own taste. But 1:10 to 1:17 is the range you want to stay inside.
How the Calculation Works
Any ratio (a:b) can be written as a fraction: a/b. That’s really all a coffee ratio is.
Say you want to brew with 300 mL of water and you’re using the 1:17 ratio. Here’s the math:
- Convert your ratio into a fraction: 1:17 becomes 1/17
- Put your water amount in the numerator: 300/17
- Divide, and the answer is your coffee amount in grams: 300 ÷ 17 = 17.65 grams
That same math works in any unit. In American measurements, 300 mL is 10.14 fluid ounces, so 10.14 ÷ 17 gives you 0.6 ounces of coffee.
Want the strong version instead? For the 1:11 ratio, that same 300 mL of water needs 300 ÷ 11 = 27.27 grams, or about 0.92 ounces.
This math isn’t exclusive to French press, either. The exact same formula works for drip brew, pour-over, cold brew, ristretto, and espresso, so once you’ve got it down, you can use it anywhere.
No Scale? Here’s the Tablespoon Version
A kitchen scale will always give you the most accurate results, since coffee density changes with roast level and grind size. But if you’re working with tablespoons, a level (not heaping) tablespoon of coarsely ground coffee weighs roughly 5 grams as a general rule of thumb. Here’s how that shakes out for common French press sizes:
| Mugs of Coffee | Water Needed | Regular (1:17) | Strong (1:11) |
| 1 mug | 8 oz (237 mL) | ~3 tbsp | ~4½ tbsp |
| 2 mugs | 16 oz (473 mL) | ~5½ tbsp | ~8½ tbsp |
| 4 mugs | 32 oz (946 mL) | ~11 tbsp | ~17 tbsp |
| 6 mugs | 48 oz (1420 mL) | ~16½ tbsp | ~26 tbsp |
One thing to keep in mind: darker roasts are less dense than lighter roasts, so a tablespoon of a dark roast can weigh noticeably less than the same tablespoon of a light roast. If you brew with a scale even occasionally, you’ll get a much more consistent cup than eyeballing scoops every time.
Best Coffee To Water Ratio For French Press
Here’s the full breakdown for both regular (1:17) and strong (1:11) French press coffee, in 8 US fl. oz. increments (that’s the equivalent of 1 mug of coffee).
| Amount of Water | Equivalent Mug(s) | Strength Type | Grams of Coffee | Ounces of Coffee |
| 8 oz (237 ml) | 1 Mug | Regular | 13.94 | 0.49 |
| 8 oz (237 ml) | 1 Mug | Strong | 21.55 | 0.76 |
| 16 oz (473 ml) | 2 Mugs | Regular | 27.82 | 0.98 |
| 16 oz (473 ml) | 2 Mugs | Strong | 43.00 | 1.52 |
| 24 oz (710 ml) | 3 Mugs | Regular | 41.76 | 1.47 |
| 24 oz (710 ml) | 3 Mugs | Strong | 64.55 | 2.28 |
| 32 oz (946 ml) | 4 Mugs | Regular | 55.65 | 1.96 |
| 32 oz (946 ml) | 4 Mugs | Strong | 86.00 | 3.03 |
| 40 oz (1183 ml) | 5 Mugs | Regular | 69.59 | 2.45 |
| 40 oz (1183 ml) | 5 Mugs | Strong | 107.55 | 3.79 |
| 48 oz (1420 ml) | 6 Mugs | Regular | 83.53 | 2.95 |
| 48 oz (1420 ml) | 6 Mugs | Strong | 129.09 | 4.55 |
Here’s the same breakdown in 5 US fl. oz. increments (1 cup of coffee), so you’re covered whichever measurement your French press uses.
| Amount of Water | Equivalent Cup(s) | Strength Type | Grams of Coffee | Ounces of Coffee |
| 5 oz (148 ml) | 1 Cup | Regular | 8.71 | 0.31 |
| 5 oz (148 ml) | 1 Cup | Strong | 13.45 | 0.47 |
| 10 oz (296 ml) | 2 Cups | Regular | 17.41 | 0.61 |
| 10 oz (296 ml) | 2 Cups | Strong | 26.91 | 0.95 |
| 15 oz (444 ml) | 3 Cups | Regular | 26.12 | 0.92 |
| 15 oz (444 ml) | 3 Cups | Strong | 40.36 | 1.42 |
| 20 oz (591 ml) | 4 Cups | Regular | 34.76 | 1.23 |
| 20 oz (591 ml) | 4 Cups | Strong | 53.73 | 1.9 |
| 30 oz (887 ml) | 6 Cups | Regular | 52.18 | 1.84 |
| 30 oz (887 ml) | 6 Cups | Strong | 80.64 | 2.84 |
| 40 oz (1182 ml) | 8 Cups | Regular | 69.59 | 2.45 |
| 40 oz (1182 ml) | 8 Cups | Strong | 107.55 | 3.79 |
| 60 oz (1182 ml) | 12 Cups | Regular | 104.35 | 3.68 |
| 60 oz (1182 ml) | 12 Cups | Strong | 161.27 | 5.69 |
Why The Ratio Actually Matters
It’s easy to treat the ratio as just a number, but it’s really about controlling extraction, which is the process of pulling flavor compounds out of the ground coffee and into your water.
When you use too much water for the amount of coffee (a high ratio like 1:20 or beyond), you under-extract. The result tastes thin, sour, and a little grassy, because the water didn’t have enough coffee to pull a full range of flavor from. Go the other direction with too little water (a very low ratio), and you over-extract, pulling out the harsher, more bitter compounds that come out later in the brewing process. That’s the flat, chalky bitterness people associate with “bad” coffee.
Coffee professionals generally aim for an extraction yield somewhere around 18–22% of the coffee’s soluble solids, which is the range most people find balanced rather than sour or bitter. Your ratio is the single biggest lever you have for landing in that window, which is exactly why “best coffee to water ratio for French press” is such a common question. Grind size and steep time matter too, but they’re fine-tuning tools. Ratio is where you start.
How Each Ratio Tastes
Since 1:17, 1:13, and 1:11 aren’t interchangeable, here’s what to actually expect from each one before you pick your everyday ratio.
| Ratio | Body | Flavor | Best For |
| 1:17 | Light, closer to tea-like | Delicate, brighter, easier to drink black | Mornings, light roasts, easing into black coffee |
| 1:13 | Medium to full | Rounded, robust, balanced sweetness | Everyday drinking, most roast levels |
| 1:11 | Heavy, syrupy | Bold and intense, with a bitter edge if you steep too long | Dark roasts, afternoon pick-me-ups, serious coffee drinkers |
If you’re not sure where to start, 1:17 is the safest bet for a first-time French press drinker. You can always move toward 1:13 or 1:11 once you know what “too strong” actually tastes like for you.
Advantages Of Using A French Press
Looking back through history, the first version of the French press was invented and patented in 1852. In the United States, it’s also called “the coffee press.” Other countries know it by other names: “cafetière” in the United Kingdom, and “coffee plunger” in Australia and New Zealand.
There are some genuinely good reasons the French press makes not just great coffee, but some of the most convenient coffee you can brew at home.
- Filter Mechanism: Regular drip coffee makers use paper filters, which strip out a lot of flavor and natural oils. The French press skips the paper filter, so those oils and flavors stay in your cup, along with a few fine coffee particles that add body
- Steeping: Just like a good cup of tea needs a few minutes of steeping, so does French press coffee. Letting the grounds sit in the water pulls out deeper, richer flavor notes than a quick pass-through method ever could
- Consistent Temperature: The French press holds its water temperature well throughout the brew, which keeps extraction even from start to finish
- Least Complicated Bean-To-Cup Formula: With a French press, you control every part of the process. Nothing external interferes, so what you put in is what you get in the cup
- Quality Coffee Grinds: Since the French press only works with a coarse grind, you’re basically forced to use freshly ground beans, which bumps up your coffee experience by default
- Portable: The French press is fully manual and easy to take apart, which makes it one of the more travel-friendly ways to brew good coffee
- Thorough Saturation: The steep-and-plunge design means every bit of the grounds gets soaked, so you’re getting a complete, even extraction from the whole batch
Steps Of Making French Press Coffee
It only takes about 4 minutes to brew a full French press.
- Boil your water. For a standard 17-oz press, you’ll need about 12 ounces of water (300 mL)
- Grind your beans while the water heats. Always use a coarse grind for French press. Anything finer and you’ll get excess sediment and a harder plunge
- Bloom the coffee. Pour water over the grounds in a 2:1 (water to coffee) ratio to start, gently stir, and let it sit for 30 seconds. This step matters more than it looks. Freshly ground coffee releases carbon dioxide when it hits hot water, and that gas needs somewhere to go before the rest of the water goes in. Skipping the bloom traps that CO2 and can leave your extraction uneven
- Add the rest of the water and put the lid on. Let the whole mix steep for 4 minutes
- Press slowly. Push the plunger down with steady, even pressure, roughly 15–20 pounds of force. Rushing it stirs up sediment and can push grounds through the filter
Serve the coffee right away after plunging. If it sits in the French press, it keeps extracting and will turn bitter or chalky before you finish your cup.
Common French Press Ratio Mistakes
Even once you know your ideal ratio, a few habits can quietly throw it off. Here’s what to watch for.
- Measuring by scoops instead of weight. A “scoop” of coffee isn’t a fixed amount. Roast level, grind size, and how tightly the grounds are packed all change how much a scoop actually weighs, which means your “1:17” might really be closer to 1:14 one day and 1:19 the next. A scale removes the guesswork entirely
- Using a ratio that doesn’t match your grind. A stronger ratio like 1:11 paired with too fine a grind is a recipe for over-extraction and a gritty, bitter cup. Stick with coarse grounds no matter which ratio you’re using
- Ignoring bean freshness. Very fresh, recently roasted beans (within a week or two) bloom harder and extract faster than beans that have sat around for a month. If your coffee suddenly tastes different with the same ratio, check how fresh your beans actually are, and read up on how to store your ground coffee to slow that decline
- Using the same ratio across every roast. Dark roasted beans are less dense than light roasts because they lose more mass during roasting. That means the same scoop of dark roast contains less actual coffee by weight, so if you switch roasts and keep your scoop count the same, your ratio quietly shifts
- Forgetting French press needs more coffee than drip. If you’re used to a drip machine’s 1:17 golden ratio and try that same ratio on a French press without adjusting, it can taste noticeably thinner. That’s because immersion brewing is a little less efficient at extraction than drip, so it benefits from sitting on the stronger end of the range
If your cup is consistently coming out wrong even after checking your ratio, the culprit is often your grinder rather than your measurements. An inconsistent grind (a mix of fine dust and large chunks) extracts unevenly no matter how precise your coffee-to-water math is.
French Press Has Its Alternatives
Clever Dripper
As the name suggests, this coffeemaker is pretty “clever,” blending the principles of immersion and pour-over. A weight-controlled valve at the base of its dripper cone lets you hold the coffee in full immersion until you’re ready to release it into your cup. Once the valve lifts, the coffee drains out on its own.
The result is a well-balanced cup with delicate flavor, thanks to the combination of pour-over extraction and a longer immersion time, similar in spirit to what makes French press work.
AeroPress
The AeroPress can be brewed the traditional way (as outlined in its manual) or with the inverted method. Most people find the inverted method easier to control, since you don’t have to worry about coffee dripping out before you’re ready to plunge.
Like the French press, the AeroPress uses full immersion, but it relies on paper or metal filters instead of skipping filtration entirely. That gives you a full-bodied cup on par with a French press, minus the sediment. A quick rinse of the filter cap, plunger, and body, and you’re ready to brew again.
FAQs
Add about 1.25 ounces of coffee for 4 cups of regular-strength coffee. For a stronger brew, use closer to 2 ounces instead.
For regular-strength coffee, that’s about 0.6 ounces. For a stronger brew, go with roughly 0.95 ounces.
For a single 8 oz mug at the regular 1:17 ratio, use about 3 level tablespoons of coarsely ground coffee. For a stronger 1:11 cup, use closer to 4½ tablespoons. Since tablespoon weight varies by roast, a scale will always be more consistent.
At the regular 1:17 ratio, you’ll need about 55.65 grams (1.96 oz, or roughly 11 tablespoons) of coffee for 32 oz of water. For a stronger 1:11 brew, that jumps to about 86 grams (3.03 oz, or about 17 tablespoons).
Both work well, and the “right” one depends on your taste. A lot of general brewing guides suggest 1:15 as an all-purpose starting ratio across methods, but French press is an immersion brewer, so it tends to shine on the stronger side of that spectrum. 1:17 is a great, approachable everyday ratio, while 1:15 or 1:13 gives you a noticeably bolder cup without tipping into “too strong” territory.
The Specialty Coffee Association’s Golden Cup standard generally calls for a ratio in the 1:16 to 1:18 range, aimed at hitting an extraction yield of roughly 18–22%. French press sits comfortably within that range at the lighter end. The stronger French press ratios (1:13, 1:11) push past it for a bolder cup, which is completely fine as long as your grind size and steep time stay consistent, since strength and extraction aren’t quite the same thing.
Steep for exactly 4 minutes in a Bodum (French press). No guesswork needed.
Aim for 200–212°F.
You can, but you’ll deal with a lot of sediment in your cup, and plunging will be noticeably harder. Stick with a coarse grind for the best results.
Almost always over-extraction. That happens when too much of the coffee’s sediment dissolves into the water, or when different parts of the grounds extract at different rates because the grind is uneven.
Conclusion
It’s hard to believe the French press has stood the test of time with this much grace. It’s still going strong in an era where everything else leans on automation. Its brew control, portability, and simplicity have kept it near the top of the coffeemaker pyramid, and now that you’ve got the ratio (and the math behind it) locked in, there’s really nothing standing between you and a better cup tomorrow morning.
Just remember to decant the coffee right after brewing. Leave it sitting in the press, and it’ll turn bitter or chalky before you get to enjoy it.
Enjoy your coffee!
