Guides
A grinder does not fail on the day its burrs wear out. It degrades slowly, over months, and the most common symptom looks so much like a dialling-in mistake that most people blame their beans, their tamping or their machine long before they suspect the two pieces of steel doing all the work.
Élodie Fontaine
Guides
Pull the shower screen out of your group head and hold it up to the light. If it looks glossy and slick, that is not household grime. It is polymerised coffee oil, and the water rinse you do after every shot has never once touched it. La Marzocco puts that greasy film at the top of its list of...
Élodie Fontaine
Guides
Two machines listed with the same pressure, the same portafilter and the same wattage can pull two very different shots. The variable that separates them almost never appears on the spec sheet: it's how the machine heats its water, and more specifically its ability to hold that water at the same...
Julien Mercier
Guides
Coffee roasted yesterday will usually pull a worse espresso than coffee roasted ten days ago. That isn't a matter of taste. The bean is still giving off gas, and the gas gets into your cup ahead of the coffee.
Camille Laurent
Guides
Most guides describe the destination — "microfoam", "wet paint", "glossy milk" — and almost none describe what your hands are actually doing. That gap is where beginners get stuck, and they nearly all get stuck in exactly the same way.
Julien Mercier
Guides
When a shot finishes in twelve seconds, or takes a full minute to fill the cup, the reflex is always the same: go back to the grinder. Sometimes that is the right answer. Often it is not — and adjusting the grind at that moment actively makes things worse. Flow rate is not a fault in itself. It...
Camille Laurent
Guides
Roast level is almost always framed as a taste question. Light if you like acidity, dark if you like body, medium if you would rather not commit. That is true, and it is the least useful half of the answer, because it says nothing about what happens inside the grinder and the basket.
Élodie Fontaine
Guides
An espresso is two weights and a stopwatch. The weight of ground coffee going into the portafilter, the weight of liquid landing in the cup, and how long that takes. The relationship between the first two is the brew ratio — the single most useful number in home espresso, and the one almost...
Julien Mercier
Guides
The rule everyone repeats fits on one line. Sour means under-extracted, bitter means over-extracted. It's correct, and it isn't enough. It leaves out the two cases that keep people going in circles for weeks: the shot that's sour and bitter at once, and the shot that stays bitter whatever you...
Camille Laurent
Guides
Ask what grind size espresso needs and someone will tell you to set it to 12. That is the one answer that cannot work, because a click number describes nothing universal — it describes where a collar sits on one specific grinder, with its own burrs and its own zero point. The question you...
Élodie Fontaine
Guides
A manual coffee grinder at €69 (Amazon.fr, checked 8 August 2026) puts nearly its whole price into the burrs. No motor. No housing, no timer, no plastic hopper. Two pieces that cut the bean, a shaft, a crank. That is the real argument for the category, and it holds up fine. The problem is the one...
Élodie Fontaine
Guides
Coffee bean prices are not rising any more. They already rose, and the bill landed in 2025: over that single year, the French consumer price index for coffee gained 17.8%. Since January 2026 it has barely moved at all. So your bag costs roughly what it cost six months ago, except that "roughly"...
Julien Mercier
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