I learned how to make espresso on a Gimme La Marzocco Linea
. Unlike any other espresso machine I've used before or since, it had a custom temperature regulator, designed and built by Tomas Reyer
and Andy Schecter
. The device is called a PID ("Proportional, Integral, Derivative") controller. It's basically a thermostat -- albeit, a thermostat with advanced fuzzy
logic and a Back to the Future display panel. And it works! I still
have vivid memories of the bittersweet chocolate shots it pulled.
If you're wishing you could have a PID of your own, good news: Make Magazine
just posted a bunch of advanced coffee tutorials, including one on how to install a PID in your espresso machine
The pdf is free and available for download at their site. For extra points, you can also follow their instructions to build a hydraulic
tamper or your very own coffee roaster (hint: it involves plenty of
propane). Anybody out there have a bandsaw I can borrow?