The French Press: Why a 170-Year-Old Brewer Still Makes the Richest Cup of Coffee

There’s something almost stubborn about the French press. In a world of Bluetooth-enabled scales, precision pour-over kettles, and espresso machines that cost more than your first car, the French press is just a glass beaker with a metal plunger. No electronics. No paper filters. No app. And yet it produces a cup with a body and depth that most fancier methods can’t touch. If you’ve ever wondered why French press coffee tastes fundamentally different from what drips out of your automatic machine — richer, heavier, somehow more there — the answer lives in a combination of history, chemistry, and a filter that refuses to filter very much at all.

The French press doesn’t just brew coffee. It steeps it, like tea — only with far more interesting consequences. That full-immersion approach, where grounds and water hang out together for four unhurried minutes, extracts oils that paper filters are designed to trap. If pour-over is a clean jazz trio, French press is a full orchestra with the brass section turned up. Both are valid. Only one shakes the floorboards.

A Quick Trip Through French Press History (It’s Not Entirely French)

French press coffee brewer backlit on a kitchen counter
Photo: K8 via Unsplash

The first patent for anything resembling a French press was filed in 1852 by two Frenchmen — Paris metalsmith Henri-Otto Mayer and merchant Jacques-Victor Delforge. Their design was primitive: a metal rod with a cheesecloth-covered screen shoved into a pot of hot water and grounds. It didn’t seal properly, the cloth degraded quickly, and fine particles slipped through constantly. It was less a precision brewer and more a “better than chewing your coffee” situation.

The design that actually worked came from Italy. In 1929, Milanese designers Attilio Calimani and Giulio Moneta patented a press with a spring-loaded filter that created a proper seal against the carafe walls. That spring was the breakthrough — without it, grounds slip past the edges and you’re back to the Mayer-Delforge grit-fest. Swiss inventor Faliero Bondanini refined it further in 1958, manufacturing it at a French clarinet factory under the name Melior, later marketing it as the “Chambord.” Danish company Bodum eventually bought the rights and turned it into the iconic design now in millions of kitchens. So is it French? Italian? Swiss? The honest answer is “yes” — fitting for a brewer that doesn’t quite fit any single category.

Why the Metal Filter Matters (It’s Chemistry, Not Preference)

Glass French press filled with dark brewed coffee on a table
Photo: Sorin Gheorghita via Unsplash

Paper filters are surprisingly good at what they do. They catch microscopic fines — those dusty coffee particles that turn a cup bitter and silty — and they trap most of coffee’s natural oils. Those oils carry two compounds worth knowing: cafestol and kahweol. They’re diterpenes, lipid-soluble molecules found in the oily fraction of brewed coffee, and they’re responsible for a significant portion of what you taste as “body” in a French press cup. Paper filters strip them out almost entirely. A metal mesh lets them sail right through.

This is the genuine trade-off. The cafestol and kahweol that give French press its velvety mouthfeel and lingering finish are the same compounds linked to elevated LDL cholesterol when consumed in large quantities — five or more unfiltered cups daily, per research published in the Nutrition Journal. For most people at one or two cups a day, the effect is negligible. The point isn’t to scare anyone off the French press; it’s to explain why the cup tastes heavier. It literally carries more of the bean — oils, micro-particles, and the full spectrum of aromatic compounds that paper leaves behind. That’s not a bug. It’s the entire point.

The Four Most Common French Press Mistakes

1. Grinding too fine. This is the number-one offender. A French press needs a coarse, even grind — think coarse sea salt, not beach sand. When you grind too fine, fine particles over-extract during the steep (producing bitterness) and slip through the mesh (producing grit). A burr grinder pays for itself here — blade grinders produce wildly inconsistent particle sizes, guaranteeing both problems.

2. Pressing too fast. The plunger isn’t a competition. Pushing down with force agitates the grounds, kicks up sediment that had settled, and forces fines through the mesh. A slow, steady, 15-to-20-second plunge with light pressure is all you need. If you have to muscle it, your grind is too fine.

3. Letting coffee sit after plunging. The plunger stops the grounds from floating, but it doesn’t stop extraction. Coffee left in the press continues brewing the entire time it sits. If you’re not pouring the whole press immediately after plunging, decant what’s left into a thermal carafe. Your second cup shouldn’t taste angrier than your first.

4. Eyeballing the ratio. The golden ratio for French press is 1:15 to 1:16 — one gram of coffee for every 15 to 16 grams of water. For a standard 8-cup (34 oz) press, that’s about 55 to 60 grams of coffee to 850 grams of water. A fifteen-dollar kitchen scale eliminates the biggest variable in your brew.

French Press vs. Pour-Over vs. AeroPress: How They Actually Compare

French Press Pour-Over AeroPress
Body Full, heavy, oily Light, clean, tea-like Medium, smooth, clean
Flavour Clarity Rounded, blended notes High — distinct origin notes Moderate — clean but present
Brew Time 4 minutes (hands-off) 3–4 minutes (hands-on) 1–2 minutes (hands-on)
Effort Level Low — set and forget High — pour technique matters Medium — plunge and press
Filter Type Metal mesh (reusable) Paper (disposable) Paper or metal (choice)
Best For Rich, bold cups; sharing Tasting origin character Single cup, quick, travel

None of these are “better” in absolute terms. They produce different cups for different moods. The French press wins on body and ease. Pour-over wins on clarity and nuance. The AeroPress splits the difference — it’s fast, portable, and can approximate either style depending on whether you use a paper or metal filter. If you already own a French press, learning to use it well is probably a better investment than buying another brewer you’ll need to learn from scratch.

The Takeaway

The French press has survived 170 years — through espresso revolutions, pod machines, and cold-brew crazes — because it does one thing unrepeatable: it gives you the whole bean. Oils, texture, body, and all the aromatic complexity that paper filters leave behind. It doesn’t require technique. It doesn’t require electricity. It asks for coarse grounds, four minutes of patience, and a gentle plunge. In exchange, it hands you the richest cup of coffee a home brewer can produce. If you’ve been neglecting yours at the back of the cupboard — or worse, using it wrong — now’s a good morning to fix that.

Frequently Asked Question

Q: Why does French press coffee taste different from pour-over coffee?

French press uses a metal mesh filter and full-immersion brewing, which allows coffee’s natural oils — including diterpenes like cafestol and kahweol — to pass into your cup. These oils carry body, texture, and a lingering finish. Pour-over uses a paper filter that traps nearly all of these oils, producing a cleaner, lighter-bodied cup with more distinct origin flavour notes. Same beans, entirely different beverages.

Sources:

  • Wikipedia — French Press (design history and patent timeline)
  • Perfect Daily Grind — French Press: The History & Brewing Guide (Mayer & Delforge, Calimani & Moneta, Bondanini)
  • Naidoo et al. (2011) — Cholesterol-raising diterpenes in types of coffee, Nutrition Journal (cafestol levels by brewing method)
  • Specialty Coffee Association — Brewing standards and extraction guidelines

Fresh-roasted coffee tastes like nothing else on your grocery shelf. Most weekdays, Francesco’s ships beans within 12 to 16 hours of roasting — so when your bag lands on your counter, it’s barely cooled from the roaster. Try one bag. You’ll know the difference on the first sip.

Taste the Difference →

FCC Editorial Team · Francesco’s Coffee Co. · Ottawa, Canada