Recipes, guides and kitchen know-how. Mostly useful, occasionally silly.
How to Use a French Press Without Drinking the Sludge
Coarse grind, about 60g of coffee per litre, water just off the boil, four minutes, stir the crust, then plunge slowly and pour it all out. That's the whole secret.
The French press is the simplest coffee maker ever invented.
Coffee. Water. Wait. Push.
And yet somehow most of us end up with a mug that's half coffee, half beach.
Here's how to use a French press properly. No sludge, no bitterness, and absolutely no need to grow a beard and open a pop-up.
Why bother with a French press?
Because it makes proper, full-bodied coffee with almost no effort.
There's no paper filter soaking up the natural oils, so you get a richer, rounder cup. There's no plug, no descaling light and no pods to bin. And it costs less than a month of posh coffees on the way to work.
It's also the only coffee machine that's never once flashed an error code at 7am. We respect that.
What you need
- A French press (we'll come back to that)
- Coarsely ground coffee
- A kettle
- A timer - your phone will do
- A spoon for stirring
- Kitchen scales, if you're feeling fancy
That's it. No pods, no plugs, no app asking for your date of birth.
Getting the ratio right
This is where most weak or bitter coffee starts. Not the press. The scoop.
A good French press coffee ratio is about 1 part coffee to 16 parts water. In real money:
- 1 mug (250ml): about 15g of coffee
- 2 mugs (500ml): about 30g
- A full 1 litre press: about 60g
No scales? Roughly two heaped tablespoons per mug gets you in the right neighbourhood.
So if anyone asks how much coffee in a cafetiere, that's your answer. Then adjust to taste. Too strong, use a bit less. Too weak, a bit more. Nobody's marking you.
Pick your beans
You don't need anything fancy, but a few things help:
- Medium or dark roasts suit a French press best. They come out smooth and chocolatey rather than sharp.
- Fresher is better. Ground coffee goes stale fast once the bag's open, so buy smaller bags or grind as you go.
- Store it properly. An airtight container in a cool, dark cupboard. Not the fridge - coffee soaks up smells, and nobody wants a latte that tastes of last night's curry.
The grind matters more than you think
The right French press grind size is coarse. Think sea salt, or chunky breadcrumbs.
Too fine and two things happen:
- The fine bits slip through the mesh and end up in your mug. Hello, sludge.
- The plunger fights back like it's guarding something.
Buying ground coffee? Look for a bag that says "cafetiere" or "coarse". Grinding your own? Set the grinder near the coarsest end and work back from there.
Step by step
- Warm the jug. Swirl a splash of hot water round it, then tip it out. A cold jug steals heat from your coffee.
- Add the coffee. Use the ratio above. Give it a little shake to level it.
- Boil the kettle, then wait. Leave it 30 seconds to a minute so it's just off the boil - around 93-96°C. Got a digital probe? The same probe you use on the Sunday roast will tell you. Rinse it first. Obviously.
- Pour and start the timer. Fill to the top of the jug, making sure all the coffee gets wet. Set four minutes.
- Stir the crust. A crust of grounds floats to the top. Give it a gentle stir so it sinks.
- Lid on, plunge slowly. When the timer goes, press down steadily. About 20 seconds, not two. If it fights you, ease off and go again.
- Pour it all out. Now. Into mugs, a jug or a flask. Don't leave it sitting on the grounds.
Four minutes. That's the magic number. If you're wondering how long to leave coffee in French press brewing, start at four and tweak by 30 seconds either way. Much longer and it goes bitter. Coffee doesn't improve with age. Neither do we.
French press or cafetiere?
Same thing. Different passport.
The French call it a cafetière. Americans call it a French press. Brits use both, usually depending on how posh the dinner party is.
So how to use a cafetiere? Exactly as above. Same coffee, same four minutes, same slow push.
If it goes wrong
Sludge at the bottom of your mug? The grind's too fine, or you poured the last drop.
Fix: go coarser, and leave the last centimetre in the jug. That's where the silt lives.
Plunger won't go down? Fine grounds are clogging the mesh.
Fix: lift it up a touch, then press again more slowly. Never force it - hot coffee and glass are not a fun mix.
Tastes bitter? It brewed too long, or the water was straight off a roaring boil.
Fix: stick to four minutes, let the kettle settle first, and pour it all out once you've plunged.
Weak and watery? Not enough coffee, or the grind's so coarse it's basically gravel.
Fix: add an extra spoonful, or go one notch finer on the grind.
Second cup's gone cold? Glass is lovely to look at, but it doesn't hold heat for long.
Fix: pour the rest into a flask, or switch to the double-wall insulated one, which keeps it hotter for longer.
Not just for hot coffee
Your press has a few party tricks up its sleeve.
Loose leaf tea. Same idea, different leaves. Tea in, hot water on, steep for three to five minutes depending on the tea, then plunge. No soggy bags fished out with a teaspoon.
Cold brew. Add coarse coffee and cold water - roughly twice as much coffee as you'd normally use - give it a stir, pop the lid on and leave it in the fridge overnight, about 12 hours. Plunge in the morning, pour over ice, feel very continental.
Frothy milk. Warm some milk (not boiling), fill the press no more than a third full, and pump the plunger up and down for 20 seconds or so. Instant foam for your flat white, no milk frother cluttering up the worktop.
Cleaning up (without blocking the sink)
Don't wash the grounds down the plughole. They clump up in the pipes and your drain will hold a grudge.
- Add a splash of water, swirl, and tip the grounds into a sieve over the bin. Or the compost - your roses will love it.
- Unscrew the plunger and separate the mesh filters. Coffee oils hide in there.
- Wash everything in warm soapy water, rinse and leave to dry.
Ours are dishwasher safe, but hand washing keeps them looking good for longer. While the sink's full, you might as well do the rest of the kitchen in a quarter of an hour.
Which press?
We make two, and they're both 1 litre - four decent mugs.
The glass one lets you watch it brew, and comes with a measuring spoon and a spare filter. The insulated one keeps the second cup as hot as the first. Both work for loose leaf tea too.
See both our presses side by side and pick your favourite. Or get both and tell everyone it's for guests.
Now go and cook something. Coffee first, though.
