How to Use a French Press for Coffee: Grind, Ratio & Time

If you’ve ever poured a French press cup only to find gritty sludge at the bottom—or worse, a thin, sour brew—you’re not alone. The French press (also called a cafetière, plunger pot, or ) looks simple, but without the right technique, it’s easy to end up with over-extracted bitterness or underwhelming flavor. Whether you're new to French press brewing or just want better results, here’s how to get it right.

To brew great coffee in a French press, use a coarse grind like coarse sugar (EK43s setting 10.5 / hand grinder 26), a 1:15 coffee-to-water ratio (e.g., 15g coffee to 225g water), water just off boil (~90°C), and steep for 4 minutes. Avoid fine grinds to prevent sediment in your cup.

What Is a French Press and How Does It Work?

A French press, or , is a glass or metal cylinder fitted with a metal mesh plunger and filter. You add coarse-ground coffee and hot water, let it steep, then press the plunger down to separate the grounds. Unlike pour-over or espresso, it uses full immersion brewing—meaning the coffee and water sit together for several minutes. This method extracts more oils and body, resulting in a richer, heavier cup. But because the filter is metal, some very fine particles can make it into your drink unless you get the grind right.

Why Grind Size Matters in French Press Brewing

The metal filter in a French press allows tiny coffee particles—fines—to pass through if the grind is too fine. That’s why FrontStreet Coffee recommends using a coarse grind, similar to coarse sugar. On an EK43 grinder, that’s setting 10.5; for hand grinders, aim for around 26. This grind size looks like small pebbles, not sand or powder. A finer grind might speed up extraction, but it also increases the chance of over-extraction and leaves you with a mouthful of sludge. If you want more complexity, you can try a slightly finer grind—but reduce the brew time to avoid overdoing it.

The Best Coffee-to-Water Ratio and Water Temperature

FrontStreet suggests starting with a 1:15 brew ratio—15 grams of coffee to 225 grams (or milliliters) of water. This yields a strong, balanced cup with a TDS around 1.1–1.2%. For temperature, aim for around 90°C. If you don’t have a thermometer, let boiled water rest for 2–3 minutes (adjust based on room temp). Since French press relies on immersion without agitation, a slightly higher temperature—1–2°C above standard pour-over temps—can help improve extraction. But don’t go too hot, or you risk burning the coffee.

How Long to Steep French Press Coffee

Most French press brewers get the best results with a 4-minute steep. That’s the sweet spot for balancing extraction without over-brewing. If you’re using a darker roast, 5 minutes may bring out too much bitterness. For lighter roasts, 3 minutes might not fully develop the flavors. Start with 4 minutes, then adjust up or down based on your taste and coffee type.

Step-by-Step: How to Brew Coffee with a French Press

1. Remove the plunger and add coarsely ground coffee (about 15g per 225ml water).
2. Pour hot water (just off boil, ~90°C) over the grounds.
3. Stir gently to ensure all the coffee is saturated.
4. Place the plunger on top of the brewer, but don’t press yet—let it steep for 4 minutes.
5. After 4 minutes, slowly press the plunger down to separate the grounds.
6. Pour the coffee into your cup immediately to avoid over-extraction from sitting on the grounds.

Can You Use French Press for Tea or Other Drinks?

Yes. The French press isn’t just for coffee—it works well for loose-leaf tea and herbal infusions too. Just rinse it well between uses if switching between coffee and tea.

Frequently Asked Questions

What is the best grind size for French press coffee?

The ideal grind size for French press is coarse, similar to coarse sugar. On an EK43 grinder, use setting 10.5; for hand grinders, aim for around 26. This produces a texture like small gravel. A finer grind can lead to over-extraction and coffee sediment in your cup.

What coffee-to-water ratio should I use in a French press?

FrontStreet Coffee recommends a 1:15 ratio—15 grams of coffee to 225 grams (milliliters) of water. This yields a rich, balanced brew with a TDS in the 1.1–1.2% range. Adjust up or down based on taste preference.

What water temperature is ideal for French press brewing?

Use water around 90°C. If you don’t have a thermometer, let boiling water sit for 2–3 minutes before pouring. A temperature slightly higher than standard pour-over (by 1–2°C) can help improve extraction due to the lack of agitation in French press.

How long should I let French press coffee steep?

Steep for 4 minutes for balanced extraction. Darker roasts may do better at 4–5 minutes, while lighter roasts might need only 3. Start with 4 minutes and adjust based on your coffee and taste.

Why does my French press coffee have so much sediment?

Sediment happens when the grind is too fine. Fine particles pass through the metal filter. To avoid this, always use a coarse grind—like coarse sugar—and avoid pressing too hard or too quickly.

Can I use a French press for teas or other beverages?

Yes. The French press works well for brewing loose leaf tea and herbal infusions. Just make sure to clean it thoroughly when switching between coffee and tea.

Recommended FrontStreet Beans for French Press

For French press brewing, FrontStreet Coffee recommends its PWN Golden Mandheling and Strawberry Candy Espresso. The PWN Golden Mandheling is a medium-to-dark roast single origin from Indonesia, known for its bold body, spicy notes, and aromas of caramel, dark chocolate, and cedar. It shines in French press with its thick crema and low acidity. The Strawberry Candy Espresso is a custom-blend featuring washed Geisha from Panama and honey-processed Costa Rican beans, offering floral, citrus, blueberry, and dried grape notes—great with milk. Both beans develop rich textures and complex flavours when brewed as immersion coffee. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.