Two-circuit with rotary pump
Two-circuit portafilter machines use the heat exchanger principle. A boiler with a temperature of around 120° for steam and hot water is fed through a heat exchanger for the espresso. On its way through the heat exchanger, the freshly drawn water is brought to about 93° for espresso brewing.
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The rotary pump quietly draws the espresso at a constant pressure of 8-9 bar. As an option, some machines have the option of a fixed water connection.
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Two-circuit machines are robust, practical machines that allow simultaneous milk foaming during espresso extraction. They can also deliver several beverages in quick succession without a significant drop in temperature. Perfect for espresso lovers and fans of foamed milk.
