Guides
The little round dial on the front panel is the most-watched and least-understood part of a home espresso machine. You stare at it for twenty-five seconds, the needle settles into the green band, and you conclude the shot was good. That is not what the dial is telling you. It carries real, useful...
Julien Mercier
Guides
You picked up a carton of oat milk, dropped the steam wand in, and got lukewarm liquid with three big bubbles floating on top. The following week, a different carton from the same family gave you dense, glossy microfoam. Nothing changed in your technique. It wasn't you — it was what was in the...
Élodie Fontaine
Guides
On a portafilter machine, two parts work on every single shot, age without ever announcing it, and appear on no maintenance sticker anywhere on the housing: the group gasket and the shower screen. They look like permanent hardware. They are consumables.
Camille Laurent
Guides
Specialty coffee has quietly settled on a hierarchy: single origin is the discerning choice, a blend is a commercial compromise. Applied to espresso, that hierarchy does not hold up. A blend solves three concrete problems a single origin cannot — consistency, body, and tolerance for grind error —...
Julien Mercier
Guides
Pre-infusion is sold as a premium feature, and the honest answer is that it is conditional. Wetting the puck at low pressure before full pressure arrives changes a great deal on a light roast ground fine at a high dose, and almost nothing on a forgiving medium roast pulled at 18 g. No product...
Camille Laurent
Guides
Somebody told you to tamp at 30 pounds. Or 15 kilos, depending on which corner of the internet you landed in. So you press. Hard. And every time a shot runs sour you press a bit harder next time, because honestly, you have no idea what 30 pounds feels like in your hand. Nobody does. That is the...
Julien Mercier
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
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