How Much Coffee Do I Put In A Cafetière? | Ratios That Work

A good cafetière starting point is 60 grams of coffee per litre of water, or about 1 tablespoon per 125 ml cup.

A cafetière is forgiving, but not random. Use too little coffee and the cup tastes thin, dull, and washed out. Use too much and it turns heavy, muddy, and harsh. The sweet spot sits right in the middle, and once you learn it, making French press coffee gets a lot easier.

The easiest rule is this: use 60 grams of coffee for every litre of water. That lands close to a 1:16 to 1:17 ratio, which is a solid place to start for most medium roasts. If you do not weigh your coffee yet, you can still make a tasty pot with tablespoons. It is less exact, though it still works well enough for daily brewing.

This article gives you the right amount for common cafetière sizes, shows when to tweak the ratio, and clears up the usual confusion around scoops, tablespoons, grind size, and brew time.

Why Cafetière Coffee Changes So Much With Small Ratio Shifts

A cafetière brews by full immersion. The coffee grounds sit in the water the whole time until you plunge. That means strength is shaped by three things working together: coffee dose, grind size, and steep time.

If one of those moves, the others start to matter more. A coarse grind with the right dose can taste round and clean. The same dose with a finer grind can run bitter and silty. A short brew with a low dose can taste flat. A long brew with a high dose can get rough fast.

That is why the coffee-to-water ratio matters so much here. It is the anchor. Once that is steady, you can tune the cup without guessing from scratch every morning.

How Much Coffee Do I Put In A Cafetière? Size By Size

If you own a scale, use grams. If you do not, the tablespoon amounts below will get you close. A level tablespoon of ground coffee is not the same across every roast and grind, so treat spoon numbers as a rough home shortcut.

Standard Starting Ratio

• 1 litre water: 60 grams coffee
• 500 ml water: 30 grams coffee
• 350 ml water: 21 grams coffee
• 250 ml water: 15 grams coffee

That is the ratio many coffee pros use as a baseline. The SCA Certified Home Brewer program also ties brewed coffee quality to steady water temperature, brew time, and Golden Cup style brewing targets. In plain kitchen terms, that means good coffee starts with repeatable ratios.

Tablespoon Shortcut For Daily Brewing

If you do not want to weigh beans, a simple shortcut is 1 heaped tablespoon for each small 125 ml cup of water. For a fuller mug, that lands closer to 2 tablespoons. Most people who say their cafetière coffee tastes weak are just under-dosing it.

Be honest about your mug size, too. A “4 cup” cafetière rarely makes four large mugs. Those cup counts are based on small servings, not the kind of mug most people pour at home.

When A Stronger Or Lighter Ratio Makes Sense

Some coffees shine with a light hand. Floral and tea-like beans can get buried under a heavy dose. Dark roasts often taste fuller at a slightly lighter ratio, since they extract more easily and can turn bitter if you push them too hard.

Use these small moves as a starting point:

• For a stronger cup: move from 60 g/L to 65 g/L
• For a lighter cup: move from 60 g/L to 55 g/L
• For dark roast: try 55 to 58 g/L
• For light roast: try 60 to 65 g/L

The National Coffee Association’s French press method also points home brewers toward coarse grounds and a short steep. That lines up with what most cafetière drinkers find by trial and error: keep the grind coarse, keep the brew controlled, and let the ratio do the heavy lifting.

Taking The Guesswork Out Of Cafetière Measurements

Here is a more detailed cheat sheet for common cafetière sizes. Use the gram column when you can. Use the spoon column when you need speed.

Cafetière Size	Coffee Amount	Home Measure
250 ml	15 g	1 to 1.5 tbsp
350 ml	21 g	2 tbsp
500 ml	30 g	3 tbsp
600 ml	36 g	3.5 to 4 tbsp
750 ml	45 g	4.5 to 5 tbsp
850 ml	51 g	5 to 5.5 tbsp
1 litre	60 g	6 tbsp
1.25 litre	75 g	7 to 8 tbsp

Those numbers assume a balanced brew. If your coffee tastes flat, do not jump straight to a finer grind. Add a bit more coffee first. If it tastes muddy and rough, cut the dose slightly before changing everything else.

Cafetière Coffee Ratio With Real-World Brewing Tweaks

The ratio gets you close, though the cup still depends on the rest of the brew. Small habits make a bigger difference than most people think.

Grind Coarse, Not Dusty

A cafetière wants coarse grounds. Think breadcrumbs, not powder. Fine coffee slips through the mesh, clouds the cup, and keeps extracting after the plunge. That is one of the fastest ways to get bitterness and sludge.

Use Water Just Off The Boil

Boiling water can hit dark roasts too hard. Let the kettle sit for around 30 seconds after it boils. That usually lands close to the range home brewers want. If your water is much cooler, the brew can taste sour and underdone.

Stir Once, Then Leave It Alone

Pour a little water first to wet the grounds, then top up the rest. Give it a brief stir so all the coffee is saturated. After that, let it steep. Constant stirring is not helping. It just makes extraction less steady.

Do Not Leave Coffee Sitting On The Grounds

Once you plunge, pour the coffee out. If it sits in the cafetière, the grounds keep working on the liquid and the cup gets harsher by the minute. If you are making more than one mug, decant the rest into a thermal flask.

Freshness matters too. Stale coffee can taste flat even with a spot-on ratio. The NCA storage and shelf life advice is a good reminder that roasted beans stay at their nicest for a short window once opened, and ground coffee loses punch even faster.

If Your Coffee Tastes Like This	Likely Cause	What To Change Next Time
Weak, watery	Too little coffee	Add 3 to 5 g more per 500 ml
Sour, sharp	Water too cool or brew too short	Use hotter water or steep longer
Bitter, heavy	Too much coffee or steep too long	Cut dose slightly or shorten brew
Muddy, silty	Grind too fine	Use a coarser grind
Flat, dull	Old coffee	Use fresher beans and grind before brewing

How Long To Brew A Cafetière For A Balanced Cup

Four minutes is the usual starting point. That works well for most medium roasts with a coarse grind and a 60 g/L ratio. If your coffee is still a bit sharp, give it another 30 seconds. If it tastes heavy and bitter, shave some time off before touching the ratio.

There is no prize for pushing brew time longer than needed. A cafetière already gives the grounds full contact with the water. Long steeping can turn a clean cup into a blunt one.

A Simple Four-Step Routine

1. Warm the cafetière with hot water, then empty it.
2. Add coarse coffee grounds.
3. Pour in hot water, stir once, and place the lid on without plunging.
4. Wait 4 minutes, plunge slowly, and pour right away.

That routine is easy to repeat, and repeatable coffee is good coffee. Once it tastes right, note the dose and water amount. Your future self will thank you.

How To Adjust The Ratio For Your Taste Without Ruining The Pot

Do not swing wildly from one brew to the next. Small changes are easier to read. If you want a stronger cup, add 2 to 3 grams of coffee per 250 ml water. If you want something softer, drop by the same amount. That is enough to taste the shift without sending the pot off a cliff.

Milk drinkers often prefer a slightly stronger cafetière brew, since milk softens body and flavour. Black coffee drinkers often like a cleaner, lighter ratio. Neither side is wrong. The goal is a cup you want to finish.

If you change beans, reset your expectations. A natural Brazil, a washed Ethiopian, and a dark supermarket blend will not behave the same way at the exact same ratio. Start at 60 g/L, taste, then nudge from there.

What Most People Get Wrong About Cafetière Coffee

The biggest mistake is treating the scoop that came with a coffee tin as a universal measure. Scoop size varies. Grind density varies. Roast level changes bean mass. Two scoops from two different coffees can be miles apart.

The next mistake is blaming the cafetière when the coffee is old. French press brewing lets body and oils through, which can make stale coffee taste even flatter. Fresh beans, a coarse grind, and a measured ratio will do more for your cup than buying a new brewer.

So, how much coffee do you put in a cafetière? Start with 60 grams per litre, brew for about 4 minutes, and adjust in small steps. That one habit gets you most of the way to a better pot.