The French press is one of the simplest brewing methods in existence and one of the easiest to get wrong. The margin for error seems wide — add coffee, add water, press — but grind size, water temperature, steep time, and press technique all determine whether you get a rich, full-bodied cup or a bitter sludge. This guide covers the technique that eliminates the most common mistakes.
Equipment and Ratios
A standard 8-cup French press holds 1 liter. The ideal ratio is 1:15 by weight — 65–70g of coffee to 1 liter of water for a rich, full-bodied cup. Always preheat the press with hot water before adding coffee — this maintains brew temperature throughout the steep.
Grind Size: The Most Common Mistake
The most common French press mistake is grinding too fine. Fine-ground coffee passes through the metal mesh plunger, creating a muddy cup and promoting over-extraction. French press requires a coarse grind — roughly the texture of coarse sea salt. On the Baratza Encore, settings 28–35 are appropriate.
The Method, Step by Step
Preheat the press, discard water. Add coarse-ground coffee. Add hot water at 92–96°C. Stir gently once. Place lid with plunger pulled up — do not press yet. Steep exactly 4 minutes. Press slowly over 20–30 seconds. Pour immediately and completely — leaving coffee on the grounds continues extraction and produces bitterness.
The Bloom Step
For fresh coffee (roasted within 2–4 weeks), add a small amount of hot water first — enough to wet all the grounds — and wait 30 seconds before adding the remaining water. This allows CO2 to escape from recently roasted beans, which otherwise creates uneven extraction.
Best French Presses to Buy
The Bodum Chambord is the classic — stainless steel frame, borosilicate glass, and a fine mesh filter that outperforms cheaper alternatives. The 34oz (8-cup) size is the most versatile for home use.