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Dialing in French press coffee means adjusting your recipe until the cup tastes rich, smooth, full-bodied, and balanced without becoming muddy, bitter, sour, hollow, or gritty. The French press is one of the most forgiving coffee methods in the sense that you do not need a perfect pouring technique, a paper filter, or an espresso-level grinder. But it is also one of the easiest methods to make heavy and messy if the grind is too fine, the steep is too long, or the coffee sits on the grounds after brewing.
The beauty of the French press is its body. Unlike a paper-filter pour-over, a French press lets more oils and tiny particles remain in the cup. That gives the coffee a heavier texture and a rounder mouthfeel. When it is dialed in well, French press coffee can taste chocolatey, warm, deep, and satisfying. When it is not dialed in, it can taste like bitter sludge or thin brown water. The difference is usually not complicated. It comes down to grind size, ratio, steep time, water temperature, stirring, plunging, and how carefully you pour.
As we discussed previously in our published article about How to Dial In Pour-Over Coffee, dialing in is not about blindly copying one recipe. It is about tasting the cup and understanding what the flavor is telling you. And as we covered in Why Your Coffee Tastes Muddy, French press naturally has more texture than paper-filter coffee, but it should not taste dirty or gritty. You want body, not sludge. You want richness, not bitterness. You want depth, not dullness.
For a simple home setup, a classic Bodum Chambord French Press, a burr grinder like the Baratza Encore ESP, and a scale such as the Hario V60 Drip Scale are enough to make very good French press coffee. If you prefer a more insulated brewer, a stainless steel French press can help keep heat more stable, but the recipe principles stay the same.
How to Dial In French Press Coffee
| Image | Product | Features | Price |
|---|---|---|---|
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Classic French Press
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Glass beaker + steel filter
|
Price on Amazon | |
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Best French-Press Grinder
|
Consistent coarse grind
|
Price on Amazon | |
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Best Brew Ratio Scale
|
0.1g + built-in timer
|
Price on Amazon | |
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Best Temperature Control
|
1-degree temp precision
|
Price on Amazon | |
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Best Smooth Medium
|
Balanced, French-press friendly
|
Price on Amazon | |
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Best Bold Body
|
Rich, heavy mouthfeel
|
Price on Amazon | |
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Best Accurate Scoop
|
Exact 2 Tbsp measure
|
Price on Amazon | |
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Best Stirring Spoons
|
Reaches deep beakers
|
Price on Amazon | |
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Best Backup Beaker
|
Heat-safe borosilicate glass
|
Price on Amazon | |
|
Best Plunger Refresh
|
Cleaner cup, less sediment
|
Price on Amazon |
The Quick Answer: How to Dial In French Press Coffee
Start with a simple baseline, taste the coffee, then adjust one variable at a time.
| Variable | Best Starting Point |
|---|---|
| Coffee | 30 g |
| Water | 450 g |
| Ratio | 1:15 |
| Grind | Coarse |
| Water temperature | 195–205°F for medium/light roasts |
| Steep time | 4 minutes |
| Stirring | Gentle at the start |
| Plunge | Slow and gentle |
| Serving | Pour off immediately. |
A good beginner French press recipe is the following:
30 g coffee + 450 g water + coarse grind + 4 minutes
Then adjust by taste.
| Taste Problem | Likely Cause | First Fix |
|---|---|---|
| Sour and thin | Under-extracted | Grind slightly finer or steep longer. |
| Bitter and dry | Over-extracted | Grind coarser or steep shorter. |
| Weak but balanced | Ratio too light | Use more coffee. |
| Muddy and gritty | Too many fines | Grind coarser/better grinder |
| Hollow | Missing body/sweetness | Stronger ratio or longer steep |
| Flat | Stale beans or poor water | Use fresher beans/better water. |
| Too heavy | Too much sediment | Pour gently and leave sludge. |
| Harsh dark roast | Water too hot | Use cooler water. |
The easiest French press rule is this:
If it tastes sour, extract more. If it tastes bitter or muddy, extract less or clean up the sediment.
What Makes French Press Different from Pour-Over?
A French press is an immersion brewer. That means the coffee grounds sit in water for the entire steep. Pour-over is a percolation method, where water flows through the coffee bed and filter. This difference changes how you dial in.
With pour-over, grind size affects flow rate dramatically. If you grind too fine, the brew can stall. If you grind too coarse, it drains too fast. With a French press, there is no paper filter drawdown in the same way. The coffee is steeping in a chamber, so the grind affects extraction speed and sediment more than flow.
| Brewing Method | How It Extracts | Main Dial-In Focus |
|---|---|---|
| Pour-over | Water flows through coffee. | Grind, flow, pouring |
| French press | Coffee steeps in water. | Grind, steep time, sediment |
| AeroPress | Immersion + pressure | Grind, steep, press |
| Espresso | Pressurized flow | Grind, dose, yield |
| Cold brew | Long immersion | Ratio, grind, steep time |
A French press gives you more forgiveness with the pouring technique but less filtration. That is why grind quality matters so much. A poor grinder can make French press coffee taste muddy even when your recipe looks right.
Best French Press Coffee-to-Water Ratio
The best starting ratio for a French press is usually 1:15, which means 1 gram of coffee for every 15 grams of water.
That ratio gives a full-bodied cup without becoming overly heavy. If you want stronger coffee, move toward 1:14. If you want a lighter cup, move toward 1:16.
| Coffee | Water | Ratio | Cup Style |
|---|---|---|---|
| 15 g | 225 g | 1:15 | Small test brew |
| 20 g | 300 g | 1:15 | Small mug |
| 30 g | 450 g | 1:15 | Standard brew |
| 40 g | 600 g | 1:15 | Larger press |
| 50 g | 750 g | 1:15 | Shared batch |
| 60 g | 900 g | 1:15 | Big batch |
For a fuller French press:
| Coffee | Water | Ratio |
|---|---|---|
| 32 g | 450 g | 1:14 |
| 36 g | 500 g | 1:13.9 |
| 43 g | 600 g | 1:14 |
For a lighter French press:
| Coffee | Water | Ratio |
|---|---|---|
| 28 g | 450 g | 1:16 |
| 31 g | 500 g | 1:16 |
| 38 g | 600 g | 1:16 |
If your coffee tastes balanced but weak, change the ratio first. If it tastes sour or bitter, change the extraction first.
Best Grind Size for French Press
A French press usually needs a coarse grind, similar to coarse sea salt or breadcrumbs. The grind should be chunky enough to reduce sediment but not so huge that the coffee tastes weak and sour.
This is where many beginners go wrong. They hear “coarse” and grind extremely chunky. Then the coffee tastes thin and sour. A French press needs a coarse grind, yes, but it still needs enough surface area to extract properly.
| Grind Size | French Press Result |
|---|---|
| Too fine | Bitter, muddy, gritty |
| Medium-fine | Usually too much sediment |
| Medium | Can work with shorter steep but may be muddy |
| Coarse | Best starting point |
| Very coarse | Weak, sour, hollow |
A good French press grind should look coarse but fairly even. If you see a lot of powder mixed with large chunks, the grinder is producing too many fines and boulders. That makes dialing in harder.
A burr grinder like the Baratza Encore ESP or TIMEMORE Chestnut C2 helps because the particles are more consistent than blade-ground coffee.
Best French Press Steep Time
The best steep time for a French press is 4 minutes.
That does not mean 4 minutes is the only correct time. It simply gives you a dependable baseline. If the coffee tastes sour or thin, steep longer or grind slightly finer. If it tastes bitter or heavy, steep shorter or grind coarser.
| Steep Time | Likely Cup Style |
|---|---|
| 2–3 minutes | Light, often under-extracted |
| 4 minutes | Classic balanced starting point |
| 5 minutes | Fuller, richer |
| 6+ minutes | Heavy, may become bitter |
| Long, steep, and settling | Can be clean if poured carefully |
For most people, I recommend starting with 4 minutes before trying longer methods. Longer French press recipes can be delicious, but they depend heavily on grind quality and careful pouring.
A simple French press timing routine:
- Pour water.
- Stir gently.
- Steep for 4 minutes.
- Press slowly.
- Pour off immediately.
Do not let the coffee sit in the press after plunging. The brewed coffee remains in contact with the grounds and can keep becoming heavier, more bitter, and muddier.
Best Water Temperature for French Press
For the French press, water temperature depends on roast level.
| Roast Level | Starting Temperature |
|---|---|
| Light roast | 200–205°F |
| Medium-light | 198–203°F |
| Medium | 195–202°F |
| Medium-dark | 190–198°F |
| Dark roast | 185–195°F |
If your French press tastes sour, especially with a light roast, use hotter water. If it tastes bitter or harsh, especially with a dark roast, use cooler water.
Without a thermometer, boil water and let it sit briefly:
| Target | Simple Method |
|---|---|
| Hotter for light roast | Use just off the boil. |
| Medium roast | Wait 30–60 seconds. |
| Dark roast | Wait 1–2 minutes. |
A French press holds heat fairly well, especially if the brewer is preheated. If you are using a glass press in a cold kitchen, preheat it with hot water before brewing. Then discard the preheated water and start your recipe.
Should You Stir French Press Coffee?
Yes, but gently.
Stirring helps all the grounds get wet. If you do not stir, dry clumps can float on top and under-extract. But too much stirring can push fine particles into suspension and make the cup muddy.
A simple stirring method:
- Add ground coffee.
- Pour all the water.
- Stir gently 3–5 times.
- Put the lid on.
- Steep.
Do not aggressively whip the coffee. You are not trying to create foam or turbulence. You are simply making sure every ground is wet.
| Stirring Style | Result |
|---|---|
| No stir | Possible dry clumps |
| Gentle stir | Even saturation |
| Aggressive stir | More sediment and muddiness |
| Stir at the end only. | Can disturb settled fines |
| Stir repeatedly. | Often too much agitation |
For a cleaner French press, stir at the beginning, then leave the brew alone.
How to Plunge French Press Coffee Properly
Plunging should be slow and gentle. The plunger is not a pump. It is a filter.
If you press too hard, you disturb the grounds and force more sediment through the mesh. That makes the cup muddy and gritty.
A better plunge:
- press slowly
- Stop if resistance feels high.
- Do not slam the plunger.
- Do not compress the grounds hard.
- Pour gently after pressing.
If the plunger is very hard to push, your grind may be too fine, your filter may be clogged, or the press may be overfilled.
| Plunge Problem | Likely Cause | Fix |
|---|---|---|
| Very hard to press | Grind too fine. | Grind coarser. |
| Coffee squirts upward. | Pressing too fast | Slow down. |
| Cup gritty | Too many fines | Better grinder/coarser grind |
| Coffee-muddy | Over-agitation | Press gently. |
| The plunger wobbles. | Filter assembly issue | Reassemble/clean |
A gentle plunge keeps the cup cleaner.
Pour Off Immediately After Brewing
This is one of the most important French press tips.
After you press, pour the coffee into cups or a separate carafe. Do not leave it sitting in the press with the grounds. Even after plunging, the coffee is still near the grounds and fine particles. The flavor continues to get heavier.
| Serving Habit | Result |
|---|---|
| Pour immediately. | Cleaner, more consistent cup |
| Let it sit 5 minutes. | Heavier, more bitter |
| Let it sit 20 minutes. | Stale, muddy, harsh |
| For the last sludge | Gritty bottom cup |
| Decant into a carafe. | Best for multiple servings |
If you are brewing for one person in a large French press, pour the extra into a mug or insulated carafe right away. This preserves the flavor much better than letting it sit on the spent coffee.
Dial In French Press by Taste
Here is the easiest taste map.
| Taste Problem | Meaning | First Fix |
|---|---|---|
| Sour and thin | Under-extracted | Grind slightly finer. |
| Weak but balanced | Too diluted | Use more coffee. |
| Bitter and dry | Over-extracted | Grind coarser or steep shorter. |
| Muddy and gritty | Too many fines | Grind coarser/better grinder |
| Hollow | Missing body/sweetness | Stronger ratio or longer steep |
| Flat | Stale beans or poor water | Fresh beans / better water |
| Too heavy | Too much sediment | Pour cleaner/reduce steep |
| Harsh dark roast | Too hot/too long | Cooler water / shorter steep |
Do not adjust randomly. Taste, name the problem, then make one change.
How to Fix Sour French Press Coffee
Sour French press coffee usually means under-extraction. The water did not pull enough sweetness and body from the grounds.
Common causes:
- grind too coarse
- steep too short
- Water is too cool
- Ratio too weak
- poor saturation
- very light roast
Fixes:
| Cause | Fix |
|---|---|
| Grind too coarse. | Grind slightly finer. |
| Steep too short | Steep 4–5 minutes |
| Water too cool | Use hotter water. |
| Ratio too weak | Use 1:14–1:15. |
| Dry clumps | Stir gently at the start. |
| Light roast | Use hotter water and a longer steep time. |
A better sour-fix recipe:
| Variable | Amount |
|---|---|
| Coffee | 32 g |
| Water | 450 g |
| Ratio | About 1:14 |
| Grind | Coarse, but slightly finer |
| Temperature | 200–205°F |
| Steep | 4–5 minutes |
If sourness improves but the cup becomes gritty, your grinder may be producing too many fines.
How to Fix Bitter French Press Coffee
Bitter French press coffee usually means over-extraction, too much fine sediment, too dark a roast, or dirty equipment.
Common causes:
- grind too fine
- steep too long
- water too hot
- coffee left in the press
- dirty mesh filter
- Dark, oily beans
Fixes:
| Cause | Fix |
|---|---|
| Grind too fine. | Grind coarser. |
| Steep too long | Start with 4 minutes |
| Water too hot | Use cooler water. |
| Coffee sits on grounds. | Decant immediately. |
| Dirty filter | Deep clean plunger |
| Dark roast harsh | Use 185–195°F. |
A smoother bitter-fix recipe:
| Variable | Amount |
|---|---|
| Coffee | 30 g |
| Water | 450 g |
| Ratio | 1:15 |
| Grind | Coarse |
| Temperature | 190–195°F for darker roasts |
| Steep | 4 minutes |
| Serve | Pour off immediately. |
If every French press tastes bitter, clean the mesh filter and check your grinder.
How to Fix Weak French Press Coffee
Weak French press coffee can mean the ratio is too light, the grind is too coarse, the steep is too short, or the beans are stale.
If it tastes weak but balanced, use more coffee.
If it tastes weak and sour, extract more.
| Weak Coffee Type | Fix |
|---|---|
| Balanced but watery | Use more coffee. |
| Sour and weak | Grind finer or steep longer. |
| Hollow and weak | Stronger ratio |
| Flat and weak | Fresher beans |
| Weak with milk | Brew a stronger base. |
A stronger French press recipe:
| Coffee | Water | Ratio |
|---|---|---|
| 34 g | 450 g | 1:13.2 |
| 36 g | 500 g | 1:13.9 |
| 40 g | 600 g | 1:15 |
I would not make the French press too concentrated unless you enjoy a heavy body. Usually, 1:14 to 1:15 is enough.
How to Fix Muddy French Press Coffee
A muddy French press is the classic complaint. It usually comes from too many fines, a grind that is too fine, aggressive plunging, or pouring the sludge at the bottom.
Fixes:
| Muddy Cause | Fix |
|---|---|
| Grind too fine. | Grind coarser. |
| Blade grinder fines | Use a burr grinder. |
| Pressing too hard | Press slowly. |
| Pouring everything | Leave the last sludge behind. |
| Dirty mesh | Deep clean filter |
| Too much stirring | Stir less. |
| Long, steep | Shorten steep or decant. |
Cleaner French press routine:
- Use a coarse, even grind.
- Stir gently only at the start.
- Steep for 4 minutes.
- Press slowly.
- Pour gently.
- Leave the last muddy sip behind.
If you want a very clean cup, a French press may not be the best method. Try AeroPress with a paper filter, V60, or Chemex. But if you want a body with less sludge, better grinding and gentler pouring will help a lot.
French Press Dial-In Recipes by Style
Classic Balanced French Press
| Variable | Amount |
|---|---|
| Coffee | 30 g |
| Water | 450 g |
| Ratio | 1:15 |
| Grind | Coarse |
| Temperature | 195–202°F |
| Steep | 4 minutes |
Best for medium roast daily coffee.
Fuller French Press
| Variable | Amount |
|---|---|
| Coffee | 34 g |
| Water | 450 g |
| Ratio | About 1:13 |
| Grind | Coarse |
| Temperature | 195–200°F |
| Steep | 4 minutes |
Best if your coffee tastes balanced but too weak.
Cleaner French Press
| Variable | Amount |
|---|---|
| Coffee | 30 g |
| Water | 450 g |
| Ratio | 1:15 |
| Grind | Coarse and even |
| Temperature | 195–200°F |
| Steep | 4 minutes |
| Extra step | Let it settle for 1 minute before pouring. |
Best if your cup tastes muddy.
Light Roast French Press
| Variable | Amount |
|---|---|
| Coffee | 32 g |
| Water | 450 g |
| Ratio | About 1:14 |
| Grind | Coarse but not huge |
| Temperature | 202–205°F |
| Steep | 5 minutes |
It’s best if a light roast tastes sour or hollow.
Dark Roast French Press
| Variable | Amount |
|---|---|
| Coffee | 30 g |
| Water | 450 g |
| Ratio | 1:15 |
| Grind | Coarse |
| Temperature | 185–195°F |
| Steep | 3:30–4:00 |
Best if the dark roast tastes bitter or harsh.
How to Dial In French Press Without Wasting Beans
French presses can use a lot of coffee if you brew full batches while testing. Use a smaller test recipe first.
Low-Waste French Press Test Recipe
| Variable | Amount |
|---|---|
| Coffee | 15 g |
| Water | 225 g |
| Ratio | 1:15 |
| Grind | Coarse |
| Steep | 4 minutes |
Taste and adjust:
| Result | Next Brew |
|---|---|
| Sour | Grind slightly finer or steep longer. |
| Bitter | Grind coarser or steep shorter. |
| Weak but balanced | Use 16–17 g of coffee. |
| Muddy | Grind coarser and pour gentler. |
| Hollow | Stronger ratio or hotter water |
| Flat | Fresher beans or better water |
Once the small test tastes close, scale up.
| Test Brew | Full Brew |
|---|---|
| 15 g coffee + 225 g water | 30 g coffee + 450 g water |
| 20 g coffee + 300 g water | 40 g coffee + 600 g water |
| 25 g coffee + 375 g water | 50 g coffee + 750 g water |
Small-batch testing saves beans and teaches you faster.
Best Beans for French Press Dialing In
A French press works beautifully with coffees that have body and sweetness. Medium roasts are usually easiest because they have enough structure without becoming too bitter.
| Flavor Goal | Bean Style |
|---|---|
| Smooth and balanced | Medium roast blend |
| Chocolatey and rich | Brazil, Colombia, Guatemala |
| Low bitterness | Medium roast Arabica |
| Bright but full | Medium-light washed coffee |
| Milk-friendly | Medium-dark blend |
| Cold-weather cozy cup | Nutty/chocolate medium roast |
A balanced coffee like Stumptown Holler Mountain Whole Bean Coffee can work well for learning because it has enough sweetness and body to show recipe changes. A smoother option like Lavazza Qualità Oro Whole Bean Coffee can make a softer French press. If you prefer a bolder cup with milk, Peet’s Major Dickason’s Blend Whole Bean Coffee can work, but brew it cooler if bitterness appears.
Avoid very old pre-ground coffee while dialing in. The French press already has texture, and stale coffee makes that texture feel dull instead of rich.
Best Tools for Dialing in French Press
| Tool | Suggested Option | Why It Helps |
|---|---|---|
| French press | Bodum Chambord French Press | Classic glass press |
| Burr grinder | Baratza Encore ESP | Better grind consistency |
| Manual grinder | TIMEMORE Chestnut C2 | Compact, consistent grinding |
| Scale | Hario V60 Drip Scale | Accurate ratio and timing |
| Temperature kettle | Fellow Stagg EKG | Repeatable water temperature |
| Insulated press | Stainless Steel French Press | Better heat retention |
| Cleaning brush | Coffee Cleaning Brush | Cleans mesh and parts |
A grinder and scale matter more than a fancy press. If your grind is uneven and your ratio is guessed, the brewer cannot save the cup.
Clean Your French Press Often
French press filters trap oils and fines. If you only rinse the glass and ignore the plunger assembly, old residue can make every cup taste bitter, muddy, or stale.
Clean these parts:
- glass or stainless carafe
- mesh filter
- spiral plate
- cross plate
- plunger rod
- lid area
Take the filter assembly apart sometimes and wash each piece. Coffee oils hide between the mesh and metal plates. That stale oil can ruin a fresh brew.
| Cleaning Habit | Flavor Result |
|---|---|
| Quick rinse only | Oils build up. |
| Disassemble filter. | Cleaner flavor |
| Wash mesh carefully. | Less stale bitterness |
| Dry parts well. | Less odor |
| Deep clean regularly. | Better clarity |
If your French press suddenly tastes worse, clean it before changing the recipe.
My Personal French Press Dial-In Routine
When I dial in a French press, I start with 30 g of coffee and 450 g of water. I grind coarse, use water around 200°F for medium roasts, stir gently, steep for 4 minutes, press slowly, and pour off immediately.
Then I taste.
If it is sour, I grind it a little finer or steep it 1 minute longer.
If it is bitter, I grind coarser or use cooler water.
If it is weak but balanced, I use more coffee.
If it is muddy, I grind coarser, press more gently, and leave the final sediment behind.
If it is hollow, I use a stronger ratio or hotter water.
If it is flat, I check the freshness and water.
My favorite thing about the French press is that it does not need to be fussy. Once the grind and ratio are right, it becomes one of the most relaxing ways to brew coffee.
Final Thoughts: French Press Is About Richness Without Sludge
Dialing in French press coffee is about finding the point where the cup has enough body and sweetness without becoming muddy, bitter, or heavy. Start with 30 g coffee, 450 g water, a coarse grind, and a 4-minute steep. Stir gently at the beginning, press slowly, and pour the coffee off the grounds immediately after brewing.
If the coffee tastes sour, grind slightly finer or steep longer. If it tastes bitter, grind coarser, steep less, or use cooler water. If it tastes weak, strengthen the ratio. If it tastes muddy, improve grind quality, reduce agitation, and pour gently. If it tastes hollow, build more extraction or use a fuller recipe.
The French press should feel comforting and full, not gritty and dull. Once you learn how grind, steep time, ratio, and sediment control work together, it becomes one of the easiest ways to brew a rich, satisfying cup at home.
FAQ: How to Dial In French Press Coffee
What is the best French press recipe to start with?
A good starting recipe is 30 g of coffee to 450 g of water, which is a 1:15 ratio. Use coarse grind and steep for 4 minutes.
What grind size is best for a French press?
A French press works best with a coarse grind, similar to coarse sea salt or breadcrumbs. The grind should be coarse but still fairly even.
How long should French press coffee steep?
Start with 4 minutes. If the coffee tastes sour or thin, steep longer. If it tastes bitter or heavy, steep shorter or grind coarser.
Why does my French press taste sour?
A sour French press usually means under-extraction. Grind slightly finer, steep longer, use hotter water, or use a stronger ratio.
Why does my French press taste bitter?
Bitter French press usually means over-extraction, a too-fine grind, a too-long steep, water that is too hot, or dirty filter parts.
Why does my French press taste muddy?
Muddy French press usually comes from too many fine particles, a grind that is too fine, aggressive plunging, or pouring the sediment-heavy bottom into your cup.
Should I stir French press coffee?
Yes, stir gently at the beginning to wet all the grounds. Avoid aggressive or repeated stirring because it can make the cup muddy.
Should I pour French press coffee out after brewing?
Yes. Pour it into cups or a separate carafe immediately after pressing. Leaving coffee in the press with the grounds can make it bitter and heavy.
What ratio makes stronger French press coffee?
Try 1:14 for a fuller cup. For example, use 32 g of coffee with 450 g of water. If it becomes too heavy, return closer to 1:15.
How do I reduce sediment in French press coffee?
Use a coarser and more even grind, press slowly, pour gently, leave the last muddy liquid behind, and clean the mesh filter regularly.