Bezzera Matrix DE Dual Boiler Triple PID Espresso MachineBezzera Matrix DE Dual Boiler Espresso Machine The Matrix DE is a luxe dual boiler espresso machine with color customizable panels, an intuitive touch screen display, triple PID thermostats, automated pre infusion, brewing, and backflushing, that automatically made our list of top five awesome prosumers. The Bezzera Matrix DE Dual Boiler glowed (quite literally) at HOST Milan 2017. Every attendee, including us, were drawn to this illuminated machine