La Marzocco KB90 AV 3-Group – Espresso Machine with Straight-In for High Throughput
During rush hour, every movement counts. The KB90 is designed for throughput and workflow: the portafilter is no longer twisted in, but pushed straight into the brew group – "Straight In Portafilter". In the 3-group version, built for businesses with very high throughput.
At Coffee Coaching Club, we're a La Marzocco partner and a coffee roastery in one – we look after configuration, installation, training and service.
What makes the KB90 special
The KB90 is the evolution of the Linea PB for maximum output. The Straight-In portafilter saves steps with every shot and is gentle on the wrist. The Steam-Flush function automatically rinses the brew group after every shot with a burst of steam and hot water – for more cleanliness even during the busiest hours. Plus multi-boiler technology with saturated brew groups and insulated Pro-Touch steam wands that stay cool even in continuous use. AV stands for Auto-Volumetric: programmable shot volumes per group, controlled by the water volume passing through.
At a glance
| Type |
Espresso machine, 3-group |
| Special feature |
Straight-In portafilter (slide straight in instead of twisting) |
| System |
Multi-boiler with saturated brew groups |
| Control |
AV (Auto-Volumetric), programmable shot volumes per group |
| Cleaning |
Steam Flush (automatic steam burst and hot-water rinse after every shot) |
| Steam |
Pro-Touch steam wands (insulated, cool to the touch) |
| Dimensions (H × W × D) |
45 × 105 × 62 cm |
| Weight |
101 kg |
What's in the box
- 3 double portafilters
- La Marzocco Tamper
- Cleaning agents and blind filter basket
- 17 g filter baskets
Who the KB90 3-group is for
For businesses with very high throughput – busy cafés, roasteries with a large coffee bar, and hospitality operations where several baristas work at once. Three groups mean more shots in parallel during rush hour, but also more counter space than the 2-group version. Our opinion is one of many: choosing between 2 and 3 groups usually comes down to expected guest volume and the space behind the counter.
Installation, delivery and service
The machine comes without a plug from the factory. For on-site commissioning, we recommend the installation package and the limescale filter installation – both are added to the cart automatically as soon as you add the machine. Availability and delivery are arranged individually with you after purchase. With every new coffee machine from CHF 1'500, a private barista introduction course of around 60 minutes is included – in Bern, Zurich or online, for up to two people from the same household or company attending together. The course must take place within one month of delivery; after that, the entitlement expires. Get in touch with us for the course and we'll find a date together. Questions in advance via [email protected] or by phone during business hours; personal consultation in Bern and Zurich.
What goes with it
You'll find the right grinder for café operations in our Mahlkönig range, and care products under Machine and Grinder Cleaning. More La Marzocco in the La Marzocco Collection.
Frequently Asked Questions
What is the KB90 3-group suitable for?
For businesses with very high throughput. Three groups and the Straight-In workflow speed up shots during rush hour.
What is the Straight-In portafilter?
Instead of twisting the portafilter in, you slide it straight into the brew group. This saves steps and is gentle on the wrist.
What does the Steam-Flush function do?
It automatically rinses the brew group after every shot with a burst of steam and hot water and keeps it clean even during the busiest hours.
Is installation included?
The machine comes without a plug. The installation package and limescale protection filter are recommended and automatically added to your cart.
Can I see the KB90 before buying?
Yes. You can see the KB90 for yourself in our showrooms in Bern and Zurich.
Roastery tip
With three groups in continuous use, consistency matters – in water, grind, and bean. As a roastery, we supply freshly roasted beans for your business and advise on the right grinder setup. Talk to us. This is our recommendation, one of many.
