La Marzocco KB90 Commercial Espresso Machine

The La Marzocco KB90 is a high-performance commercial espresso machine designed for the most demanding café environments. Built as the evolution of the Linea PB platform, the KB90 focuses on improving barista workflow, speed of service and shot consistency in high-volume coffee bars.

Featuring dual boilers, saturated group heads and precise PID temperature control, the KB90 delivers exceptional thermal stability and reliable espresso extraction throughout even the busiest service periods. The machine also introduces La Marzocco’s innovative Straight-In portafilter system, designed to reduce barista wrist strain and speed up workflow behind the bar.

Available in 2 or 3 group configurations, the KB90 is engineered for specialty cafés and high-volume coffee programs where consistency, efficiency and reliability are essential.

Key Features

• Straight-In portafilter system – portafilters lock in horizontally rather than twisting, reducing wrist strain and improving barista workflow.

• Auto steam flush system – automatically cleans the group head after each extraction with a burst of steam and hot water, helping maintain flavour consistency.

• Dual boiler system – separate boilers optimise espresso brewing and steam performance for consistent results.

• Independent brew boilers – each group head has its own boiler, allowing baristas to optimise temperature for different coffees.

• PID temperature control – electronically manages brewing and steam temperatures for precision extraction.

• Saturated group heads – maintain exceptional thermal stability for consistent espresso shot after shot.

• Integrated scales with drip prediction (ABR models) – improves shot consistency by stopping extraction based on beverage mass.

• Pro Touch steam wands – high-performance steam wands that remain cool to the touch during operation.

Who This Machine Is For

The La Marzocco KB90 is ideal for:

• High-volume specialty coffee shops
• Busy cafés producing large drink volumes
• Coffee roasteries operating retail cafés
• Restaurants and hospitality venues
• Coffee businesses prioritising workflow efficiency

Designed specifically for high-volume café performance, the KB90 focuses on improving speed, consistency and barista ergonomics during service.

The innovative Straight-In portafilter system simplifies the motion required to engage the portafilter, while automated cleaning functions such as Steam Flush help maintain group cleanliness even during the busiest hours.

Combined with La Marzocco’s renowned thermal stability and durable commercial construction, the KB90 delivers reliable espresso performance for cafés that demand precision and efficiency.

Frequently Asked Questions

What is the La Marzocco KB90?
The KB90 is a commercial espresso machine designed for high-volume cafés, focusing on improving barista workflow, shot consistency and service speed.

What makes the KB90 different from the Linea PB?
The KB90 builds on the Linea PB platform but introduces new workflow features such as the Straight-In portafilter system, integrated scales and automated Steam Flush cleaning.

How many group options are available?
The KB90 is available in 2-group and 3-group configurations, allowing cafés to choose the capacity that suits their service volume.

What is the Straight-In portafilter system?
Instead of twisting the portafilter into place, the KB90 allows baristas to insert it straight into the group head, reducing wrist strain and speeding up drink preparation.

Is the KB90 suitable for specialty coffee?
Yes. With independent brew boilers, saturated group heads and PID temperature control, the KB90 provides the thermal stability needed for consistent specialty espresso extraction.