App – Pressure & Flow

Application – Pression et débit

Quick Start – This app simulates the pressure and flow inside an espresso machine while a shot is running. To view the effects of these changes in real time during a shot, click on ‘Graph’ and then ‘Start’, and the app will simulate an espresso being pulled,...
Bench-top Roller Mill?

Broyeur à rouleaux de paillasse ?

Why hasn’t anyone made a small affordable roller mill yet? How hard can it be? Industrial grinders, of the sort used to produce espresso pods or supermarket packs of pre-ground coffee, are more or less exclusively roller mills. The most sophisticated of these grinders...
A Few Minutes of Foam

Quelques minutes de mousse

If you leave a latte for a few minutes on the countertop, sometimes the foam starts to break up — but sometimes it doesn’t. Why? No matter how long you’ve been slinging shots, sometimes a latte will go bubbly after pouring. If you’ve ever had to remake a coffee...
Wheels of Steel

Roues en acier

The pros and cons of stainless steel, copper, and brass when it comes to boilers, portafilters and blocks. Call me a nerd, but I vividly remember the first time I used a machine made with all stainless steel. The coffee tasted vibrant and clean, and the salesperson...