Duvall Espresso has officially launched its FC-1 espresso machines after seven years of development, offering single, dual, and three-group versions priced between $17,000 and $32,000. The FC-1 machines introduce a breakthrough method for precise real-time control over water flow, utilizing a unique heated syringe and servo motor system rather than traditional pumps and valves. This new design not only enhances accuracy but also reduces the number of components susceptible to failure, addressing common issues seen in conventional espresso manufacturing. The machines were a highlight at the latest SCA Expo in Houston, underscoring their potential impact on brewing technology.
"If you tried to accomplish this with a conventional rotary pump, a needle valve, and a pressure sensor, the problem is you have a feedback loop," Duvall said. "The flow has to happen, and then the flow meter has to sense it, and then you have to use your needle valve to adjust the resistance to try and get a flow rate in the future. It's a backwards-looking system."
Duvall explains that with their digital piston, "You’re never going to be anywhere near as accurate and consistent as you could be if you are controlling it with this digital piston."
The FC-1 offers a fundamentally new approach to espresso machines, achieving real-time control over flow rate with its heated, syringe-like design operated by servo motors.
"The FC-1 also requires fewer small parts and electronics that may be prone to failure, according to Duvall," making it more reliable compared to conventional espresso machines.
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