Ever wonder why 9 bars became the industry standard for producing espresso? Why not 6? Why not 10?

Should an espresso machine even really be designed to control pressure? If not, why are they?

The answer is that no, pressure is not the most important factor in generating flavor but rather flow rate of water through the grinds. So why aren’t today's leading espresso machines designed to control flow rate? Because pressure has been the standard and it's never been questioned.

Duvall Espresso was founded on the principle that controlling flow rate is key to unlocking the flavor potential of any coffee. This belief inspired our exclusive FlowRate™ technology—providing baristas an unprecedented level of control, versatility and ease of use to extract the best from any coffee with consistency for every customer. Now with our FC-1 machine you can control what really matters.