The KB90 is the ultimate evolution of the Linea PB form. Designed specifically to increase speed of service in the highest volume cafes while easier for the barista thanks to an improved workflow. La Marzocco has redesigned the portafilter system to improve workflow efficiency and to reduce the wrist strain of the user. Efficiency can also be increased thanks to Steam Flush: after each extraction, a burst of steam from the grouphead is followed by a flush of hot water, keeping the machine clean even in the busiest rush hours. This innovative function minimizes off flavored buildup, and increases the time between having to clean the group. The KB90 allows for a new level of expression in machine design, the panels have been engineered so that virtually infinite customization combination can be created.

Drip prediction algorithm

Precision scales incorporated into the drip tray improve beverage consistency by stopping the

extraction based on mass. The machine uses an algorithm called Drip Prediction to improve shot

accuracy and ease of dialing in.

Essential features

dual boiler system

Separate boilers optimize espresso brewing and steam production.

independent brew boilers

Separate boilers for each group head allow barista to optimize temperature for individual coffees.

PID temperature controller

Allows you to electronically control coffee and steam boiler temperature.

saturated group design

Ensure unsurpassed thermal stability, shot after shot.

thermal stability system

Brew water is pre-heated before entering the boiler for increased temperature stability.

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 needing to be removed.

hot water economizer

Enables you to fine-tune the tap water temperature for rinsing.

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.

technical specifications

Specifications	2grp	3grp
Height (in)	21	21
Width (in)	32	41.5
Depth (in)	24.5	24.5
Weight (lbs)	170	223
Voltage	220V Single Phase	220V Single Phase
Wattage Elements	5400 (200V) 5700 (220/380V)	7300 (200V) 7800 (220/380V)
Coffee Boiler Capacity (liters)	1.3	1.3
Steam Boiler Capacity (liters)	7	11
Auto-Brew Ratio/ Drip Prediction	Optional	Optional
Configurations	AV/ ABR	AV/ ABR

Manual (PDF)     Product Sheet (PDF)