La Marzocco KB90 Coffee Machine La Marzocco KB90 2 ,3& 4 Group The KB90 is the ultimate evolution of the Linea PB form. Designed to increase speed, improve workflow efficiently and to reduce stain on the user. Dual Boilers Separate boilers optimize espresso brewing and steam production. Independent Boilers Separate boilers for each group head allow barista to optimize temperature for individual coffees. Dual PID (coffee and steam) Allows you to electronically control coffee and steam boiler temperature. Saturated Groups Ensure unsurpassed thermal stability, shot after shot. Thermal Stability System As water passes through each element, temperature is further stabilized. Insulated Boilers Reduce energy consumption while contributing to temperature stability. Steam Flush Keeps the group clean with an automatic burst of steam and a flush of hot water between extractions. Pro Touch Steam Wands High performing steam wands that are cool to the touch. Easy Rebuild Steam Valve Engineered so the valve can be serviced directly from the front of the machine without needed to be removed. Hot Water Economizer Enables you to fine-tune the tap water temperature for tea. Digital Display Intuitive programming makes it easy to adjust machine parameters. Barista Lights Led lighting allows you to focus on your extraction and the cup. Eco Mode Can be programmed to enter stand-by mode, improving energy efficiency. USB Making it possible to update the firmware. Programmable doses Auto-volumetrics ensure repeatability and consistency in high-volume settings. EXTRAS High Legs* Makes it easier to access beneath the machine. Cup Warmer* Maintain espresso and cappuccino evenly cups heated at a proper temperature.