Rancilio Silvia Portafilter Pressure Gauge Tester Coffee Machine Espresso Maker

Suits Rancilio machines. Includes portafilter and gauge (everything in the picture). To make perfect espresso, the water pressure needs to be very close to 9 bar for perfect extraction. Users often misdiagnose the problem, and move to a coarser grind which in fact exacerbates the.

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