"The single-boiler system maintains the relative simplicity, dependability and lower maintenance needs of traditional heat-exchanger systems while accommodating modern specialty coffee cafes, where different extraction parameters are needed to showcase flavor differences among various single-origin and blended coffees."
"Central to the new technology is an old one: the thermostat-controlled heating element designed and patented by VBM founder Carlo Ernesto Valente roughly 40 years ago. In HX², that concept is updated with programmable logic controllers governing heating elements installed inside each heat exchanger. The exchangers still draw heat from the boiler but gain efficiency, stability and precision from their internal heaters."
""We don't want to replace a technology that has always proven its effectiveness, but rather continue to develop it, enhancing its performance," VBM CEO Cristiano Osnato said in an announcement of the new equipment. "From this idea came the decision to strengthen the HX technology, the heart of our espresso machines, making it even more appealing to baristas who love to experiment, without giving up the safety and reliability that have always characterized this system.""
The Audrey is a commercial espresso machine that uses VBM's HX² heat-exchanger technology to deliver different water temperatures to each group without requiring multiple internal boilers. The single-boiler approach preserves the simplicity, dependability and lower maintenance of traditional heat-exchanger systems while enabling specialty coffee cafés to use varied extraction parameters for single-origin and blended coffees. HX² updates a thermostat-controlled heater concept with programmable logic controllers and internal heating elements inside each heat exchanger, allowing exchangers to draw boiler heat while gaining efficiency, stability and precision. The machine minimizes plastics for longevity and features rounded edges, curved panels and a centered VBM diamond insignia.
Read at Daily Coffee News by Roast Magazine
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