Brew pressure gauge
The brew pressure gauge provides immediate feedback on the pressure in the brew head, allowing you to make changes to your coffee grind to achieve optimal results. With 16 grams of ground coffee in your double filter basket aim for 32 - 40 grams of espresso out in 25 - 30 sec. The pressure gauge should be in the middle of the green zone while your shot is pouring. If the pressure is too high, your grind is too fine. If the pressure is too low, your grind is too coarse.
Over Pressure Valve
An OPV (Overpressure valve) limits the group head pressure for optimal extraction so that bitter coffee does not result as a consequence of high brew pressure.
Multi-directional steam wand
The steam wand produces a powerful dry steam ideal for texturing milk. The ball joint connection allows you to position the steam wand where you like it.
The PID (Proportional integral derivative) control system monitors the boiler temperature and powers the boiler element maintaining a temperature that is much more stable than a simple on/off thermostat switch. During espresso pour, the PID ensures stable brew water temperature vital for the perfect coffee extraction. During steaming the PID ensures strong, stable steam pressure for milk texturing.