List Price: $25,710
La Marzocco introduced the coffee industry to its “ultimate workflow machine,” the KB90, in February 2019. Many of the features in the KB90 were designed to promote an ergonomic environment for baristas, free of repetitive stress injuries and workflow disruptions. Following its introduction, the KB90 became the first espresso machine to offer straight-in locking portafilters, eliminating wrist strain for baristas.
Performs Best For
Mid to high-volume coffee shops needing not only to streamline precise espresso extraction but also enhance barista efficiency—without causing unnecessary physical strain. Ideal for coffee shops in demanding settings, such as a busy coffee shop in a metropolitan area or a drive-thru establishment serving hundreds of cars daily.
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Buyer’s Guide
Fresh Cup’s exploration into La Marzocco’s product line.
Key features and innovations | Best machines by setting | What to know before you buy
Noteable Features
Straight-In Locking Portafilters
Every barista understands the agony of the wrist, hand, and forearm pain that results from cranking portafilters into a group head day in and day out. The KB90 minimizes the likelihood of repetitive stress injuries with portafilters that insert straight into the group head, rather than from the side.
Auto Steam Flush
After each extraction, the KB90 automatically flushes each group head using steam and hot water to ensure that it is clean and ready for the next use. Baristas no longer have to manually purge group heads between shots, a practice that slows down their workflow. This functionality also reduces the possibility of coffee grounds accumulating around the group head.
Mass-Based Profiling
With built-in drip tray scales, baristas can put espresso extraction on autopilot, dialing in each shot based on mass, not time. La Marzocco’s ABR (Auto Brew Ratio) technology leverages the scales to ensure precision with each extraction.
Pro Touch Steam Wands
The KB90 boasts cool-touch steam wands for enhanced safety in high-volume cafes. Plus, the KB90’s steam wands feature La Marzocco’s latest “easy rebuild” innovation, allowing valves to be accessed from the front for seamless repair or maintenance.
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More La Marzocco Machines
Strada X | 1 Group
High-tech machine with real-time mass and pressure profiling, built for consistent, precision extractions in demanding cafe settings.
Leva S | 2 Group
Modern manual-lever machine that combines classic lever mechanics with new tech for smoother use.
List Price: $24,400
Linea PB | 4 Group
La Marzocco’s modern flagship model with enhanced extraction control, optional drip tray scales, integrated digital displays, and Eco Mode settings.
List Price: $26,740
Linea PB | 3 Group
La Marzocco’s modern flagship model with enhanced extraction control, optional drip tray scales, integrated digital displays, and Eco Mode settings.
List Price: $23,320
Recently Added
GS3 | 1 Group
A Strada-like single group built for low-volume and home espresso settings.
List Price: $7,500
GB5 S | 4 Group
The machine that revolutionized traditional espresso, now modernized with PID temperature control and volumetric capabilities.
List Price: $22,590
GB5 S | 3 Group
The machine that revolutionized traditional espresso, now modernized with PID temperature control and volumetric capabilities.
List Price: $19,970
Linea PB | 2 Group
La Marzocco’s modern flagship model with enhanced extraction control, optional drip tray scales, integrated digital displays, and Eco Mode settings.
List Price: $19,710
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