About La Marzocco KB90
The La Marzocco KB90 simplifies high-volume office café service with its user-friendly design and cutting-edge features. Built for speed, consistency, and barista health, it reduces repetitive stress by up to 12x thanks to the industry-first Straight-In Portafilter and built-in auto-cleaning technology.
Disclaimer: Lead times are longer than other brands, as these machines are usually made to order.
Key Benefits
- Ergonomic Straight-In Portafilter reduces wrist strain and injury
- Ideal for fast-paced, high-volume office cafes (100–500 people)
- Built-in Steam Flush and Auto Brew Ratio for consistent taste and hygiene
- Sleek, durable build with decades of engineering expertise
Features
- Straight-In Portafilter for faster, safer workflow
- Auto Brew Ratio with Drip Prediction technology
- Steam Flush self-cleaning function
- Dual PID temperature controls
- High-capacity steam and brew performance
Specifications
| Specification | Details |
|---|---|
| Manufacturer Model # | 2 Group |
| Dimensions (W x D x H) | 32 x 24.5 x 17.5 inches |
| Electrical Requirements | Single Phase 208–240 V, 60 Hz, 5400 / 5700 Watt |
| Output Capacity | No upper limit |
| Water Line | 3/8" Male Comp, 45 PSI, 2 Water Flow (GPM) |
| Drain Requirement | Requires nearby floor drain |
| Water Filtration Requirements | Requires external water filtration. Incoming water hardness must be greater than 9°f (90 ppm, 5°d) and less than 15°f (150 ppm, 8.4°d). pH must be between 6.5 and 8.5. Chlorides must be less than 50 mg/L. |
| External Pump Dimensions | 12" x 12" x 12" |
Upkeep Recommendations
- Daily: Backflush each group head; wipe down the steam wand
- Weekly: Deep clean brew groups and portafilters
- Monthly: Inspect the water filter system and perform full machine cleaning
- Quarterly: Replace group gaskets and screens
- Yearly: Rebuild steam wands; assess internal components
Resources
- Spec Sheet & Installation Guidelines (available upon request)
- La Marzocco Manufacturer Site
Troubleshooting Tips
- Issue: Machine not brewing
Possible Cause: Portafilter not seated correctly
Fix: Reseat using the Straight-In method
Request Maintenance: Submit a ticket - Issue: Inconsistent espresso shots
Possible Cause: Brew ratio not dialed in
Fix: Use the Auto Brew Ratio feature to adjust
Request Maintenance: Submit a ticket - Issue: Poor steam performance
Possible Cause: Steam wand needs cleaning
Fix: Activate Steam Flush or manually clean
Request Maintenance: Submit a ticket
FAQs
Is the KB90 suitable for a high-volume office?
Yes, it’s designed to support offices with 100–500 people and can handle peak coffee rushes with ease.
What makes the KB90 more ergonomic than other espresso machines?
The Straight-In Portafilter reduces the wrist motion required to lock in the portafilter, minimizing barista fatigue and repetitive stress.
Does the KB90 clean itself?
Yes, the Steam Flush feature automatically cleans the brew path with steam and hot water after each use, helping ensure hygiene and better-tasting espresso.