ECM Puristika Espresso MachineThe ECM Puristika is a deliberate machine. Single boiler. E61 group head. Built in PID. Pressure adjustment via adjustable expansion valve. No steam wand. No compromises. This is espresso only design at its most refined a machine for the home barista who cares more about the shot in the cup than impressing guests with a milk pitcher. At $1,549, the Puristika occupies a rare space: true E61 performance without the bulk or price tag of a dual boiler.