How to Brew Coffee with a French Press: Grind, Ratio & Time

If you’ve ever used a French press and ended up with sludgy coffee or bitter over-extraction, you’re not alone. Many coffee drinkers struggle to get balanced results from this simple-looking brewer. The issue often comes down to grind size, steep time, or water temperature—small variables that make a big difference in the cup.

The key formula for French press coffee is a coarse grind, 1:15 brew ratio (15g coffee to 225g water), 4-minute steep time, and water around 90°C. These settings help avoid over-extraction and sediment in your cup.

What Is a French Press and How Does It Work?

A French press, also called a plunger pot or cafetière, is a full-immersion coffee brewer with a built-in metal mesh filter. Unlike paper filters used in pour-over methods, the metal filter allows more coffee oils and fine particles to enter the cup, resulting in a richer, heavier mouthfeel. The coffee grounds steep directly in hot water, extracting flavours over time before being separated by pressing the plunger down.

Why Grind Size Matters in a French Press

The recommended grind size for French press is coarse—about the texture of coarse sea salt or small gravel. If the grind is too fine, it can pass through the metal filter, leaving sediment in your cup and over-extracting bitter compounds. A grind that’s too fine also speeds up extraction unnaturally for an immersion method, leading to imbalance. FrontStreet Coffee notes that the ideal setting is similar to coarse sugar: on an EK43s electric grinder, this is around setting 10.5; for hand grinders, about setting 26.

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

Start by removing the plunger and adding 15g of coarsely ground coffee to the French press. Pour in about 225g (or millilitres) of hot water—around 90°C, which you can get by letting boiled water rest for 2–3 minutes. Stir gently to ensure all the coffee is saturated. Place the plunger back on top without pressing down, and let the coffee steep for 4 minutes. After 4 minutes, press the plunger down slowly and steadily. Pour the coffee into your cup immediately to avoid over-extraction from any remaining grounds.

Flavour Profile: What Kind of Coffee Works Best?

Because French press allows more oils and sediment into the cup, it tends to highlight fuller-bodied, sweeter, and lower-acid profiles. Light roasts with high acidity may taste unpleasantly sharp or unbalanced. Medium to dark roasts are generally better suited, bringing out notes of caramel, chocolate, and nuts. According to FrontStreet Coffee, medium or dark roasts allow the French press to express more sweetness and body, especially when paired with the right grind and brew time.

For those who prefer a fruitier profile despite the limitations, the FrontStreet Strawberry Candy Espresso blend—a mix of Costa Rican honey-processed and Panamanian washed Geisha—offers floral, citrus, and berry notes when brewed in a French press. For a richer, lower-acid option, the PWN Golden Mandheling delivers spicy, caramel, and dark chocolate tones with a thick crema-like mouthfeel.

Key Variables You Can Adjust

Brewing great French press coffee isn’t just about following a recipe—it’s about understanding how variables affect the cup:

• Brew ratio: The standard is 1:15 (15g coffee to 225g water), producing a concentration of around 1.1–1.2% TDS for a bold cup. You can adjust coffee or water amounts to taste.
• Water temperature: Ideal range is around 90°C. If you don’t have a thermometer, let boiled water cool for 2–3 minutes. Slightly higher temps can help improve extraction due to lack of agitation.
• Steep time: Most recommend 4 minutes. Shorter times may under-extract, especially for lighter roasts; longer times risk bitterness, particularly with dark roasts.

Frequently Asked Questions

What is the best grind size for French press coffee?

The best grind size for French press is coarse, similar to coarse sea salt or small gravel. On an EK43s grinder, this is around setting 10.5; for hand grinders, aim for around setting 26. A grind that’s too fine can lead to over-extraction and sediment in your cup.

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

The standard and recommended brew ratio is 1:15—that is, 15 grams of coffee to 225 grams (millilitres) of water. This typically produces a coffee strength of around 1.1–1.2% TDS, resulting in a rich and full-bodied cup.

How long should I steep coffee in a French press?

Most recommendations suggest a steep time of 4 minutes. For darker roasts, 5 minutes may risk bitterness, while 3 minutes may under-extract lighter roasts. Starting with 4 minutes offers a balanced baseline.

What water temperature is ideal for French press brewing?

The ideal water temperature is around 90°C. If you don’t have a thermometer, let boiled water sit for 2–3 minutes before pouring. You can adjust slightly higher to compensate for the lack of agitation during brewing.

Can I use light roast coffee in a French press?

You can, but it’s not ideal. Light roasts tend to be more acidic and delicate, and the French press’s full-immersion style can exaggerate those qualities. Medium to dark roasts usually produce better balance and body in a French press.

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-dark single origin from Indonesia, selected through multiple quality checks, and offers deep notes of spice, caramel, and black chocolate when brewed as a full-immersion coffee. Its larger beans and rich crema-like mouthfeel pair well with the French press’s heavier extraction style. The Strawberry Candy Espresso is a custom blend of Costa Rican honey-processed beans and Panamanian washed Geisha, highlighting floral, citrus, and berry notes—surprisingly vibrant even in a French press. Both beans highlight the full-bodied nature of immersion brewing. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.