The French press, or coffee plunger, has stayed a favourite for good reason: it needs no paper filters, no electricity and very little equipment, and a well-made cup rivals far more complicated methods. Its metal mesh filter also lets more of the coffee's natural oils through than a paper filter would, producing a fuller-bodied cup.
The basics that matter
Ratio: a standard 1:15 ratio, one gram of coffee to fifteen grams of water, is a reliable starting point. Adjust toward 1:12 for a stronger cup or 1:17 for something lighter.
Grind: coarse, roughly the texture of sea salt. Too fine and the metal mesh filter can't hold back the fine particles, leaving your cup gritty. Too coarse and you'll under-extract.
Water temperature: around 93°C, just off the boil. Water straight off a rolling boil can scald the grounds and pull out unwanted bitterness.
Steep time: four minutes is the standard starting point, adjust in small increments based on taste.
Brewing it step by step
Preheat the press with hot water, then discard it, this stops a cold vessel from dropping your water temperature the moment you add it.
Add your grounds and pour in roughly double the water needed for a full brew, enough to properly saturate the grounds.
Stir gently and let it bloom for 30 seconds, this releases trapped CO2 and helps even extraction.
Add the remaining water and place the lid on top with the plunger pulled up, not pressed down, letting the coffee steep undisturbed.
Steep for four minutes, then press the plunger down slowly and evenly over about 20 seconds.
Pour immediately. Leaving brewed coffee sitting on the grounds continues extracting it, even after plunging, pour it all out rather than leaving the pot to sit.
If something's off
Gritty texture: your grind was too fine for the mesh filter, coarsen it next time.
Weak or thin: increase your coffee-to-water ratio or extend the steep time slightly.
Bitter: shorten the steep time, lower your water temperature slightly, or coarsen the grind.
The takeaway
The French press rewards attention to a small number of variables done well: the right ratio, a properly coarse grind, water just off the boil, and a slow, even plunge. Master those and it's one of the most consistently satisfying ways to brew.
