Nanopresso is one of the best and most versatile espresso machines. A truly unique addition to your coffee toolkit! Built around a newly patented pumping system, the Nanopresso is capable of reaching, with the help of your hands, a maximum of 18 bars (261 PSI) of pressure for unparalleled coffee extractions qualities. The Nanopresso works best with finely ground coffee that is tamped hard. It is delightfully easy to operate and simple to use. The Nanopresso requires 15% less force to pump compared to previous models (1st generation Minipresso).