What started as a little restoration project of a second-hand coffee machine resulted in a complete ... [Rhys] decided to add a PID control loop, and on the way, an OLED display, too.

PID controller. LCD display ... It’s quite similar to this custom espresso machine build we saw a few years ago.

That doesn't mean that espresso enthusiasts don't purchase it for at-home use, of course. Its PID-controlled dual boilers are the star of the show when it comes to the Bianca, but this machine ...

Just a decade ago, a homemade morning cup of joe in the U.S. pretty exclusively meant drip coffee; the only people I knew ...

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