Description
Multi-Boiler Power, Built for Indian Volume
Back-to-back shots expose the weak point of most espresso machines: temperature drift. The Slim Jim espresso machine, engineered by Kees van der Westen, gives every group its own boiler so high-volume cafés never trade consistency for speed.
Engineered Around Thermal Stability
Every brew group on the Slim Jim is welded directly to its own 0.8L, 316L stainless steel coffee boiler — a saturated group design that keeps puck temperature virtually identical to the PID-set boiler temperature. An intelligent thermo-syphon pre-heats incoming water through the steam boiler’s internal heat exchanger, while an electronic sensor at the distribution block fine-tunes temperature with cold-water injection, even during rush hour.
Built For High-Volume Bars
- Independent 316L stainless steel boiler per brew group
- 10.5L insulated steam boiler with three heating spirals
- Slim stainless steel body for compact bar layouts
- Spring-loaded pre-infusion for even, channel-free extraction
- Redundant probe systems guard against dry-heating and over-pressure
Inside the Slim Jim Espresso Machine
Multiple Boiler System
Independent 316L stainless steel boilers for every group plus one 10.5L steam boiler resist water-borne corrosion and hold temperature under continuous use.
Saturated Group Design
The group head is welded to the 0.8L coffee boiler, so water at the puck matches the PID-controlled boiler temperature almost exactly.
Intelligent Thermo-Syphon
An electronic sensor monitors the distribution block and injects cold water via a mixing chamber to hold precise extraction temperature during peak service.
High-Volume Steam
Three heating spirals, managed by solid-state relays, deliver dry, consistent steam power from the insulated 10.5L boiler.
Versatile Hot Water
Choose an adjustable 60–100°C mixed flow for Americanos and tea, or a direct-from-boiler toggle for true boiling water.
Spring-Loaded Pre-Infusion
A double-spring piston builds pressure to roughly 4.5 bar, swelling the coffee bed and sealing against channeling before full extraction pressure.
Duette vs Triplette
| Feature | Duette (2-Group) | Triplette (3-Group) |
|---|---|---|
| Coffee Boiler | 0.8L per group (316L Stainless) | 0.8L per group (316L Stainless) |
| Steam Boiler | 10.5L (316L Stainless) | 10.5L (316L Stainless) |
| Steam Heating Power | 4,800W / 6,000W | 4,800W / 6,000W |
| Coffee Heating Power | 2 x 450W | 3 x 450W |
| Peak Power (No Pump) | 6,325W – 7,975W | 6,775W – 7,975W |
| Electrical Configuration | 220–240V, 50–60Hz, 1 or 3-Phase | 220–240V, 50–60Hz, 1 or 3-Phase |
Slim Jim Espresso Machine FAQs
What is the difference between the Duette and Triplette?
The Duette is a 2-group configuration and the Triplette is a 3-group configuration; both share identical boiler materials, pre-infusion design, and steam power specifications.
Can steaming controls be upgraded?
Yes. Standard turning knobs can be upgraded to toggle levers or foot-activated air-bulb switches, letting baristas texture milk hands-free.
Does the Slim Jim support both single and three-phase power?
Yes. It runs on 220–240V, 50–60Hz, and is available in 1-phase or 3-phase electrical configurations.
How does pre-infusion work on this machine?
A double-spring piston inside a dedicated pre-infusion cylinder raises pressure gradually to around 4.5 bar before full extraction pressure, sealing the coffee bed against channeling.
What safety systems protect the boilers?
Redundant probe systems prevent dry-heating, while electronic cut-outs and safety valves guard against over-pressure or overheating in both the coffee and steam systems.
Who the Slim Jim Espresso Machine Is For
This is a machine for high-volume specialty cafés across India that need multi-boiler stability, precise pre-infusion, and a slim stainless steel footprint without compromise. Choose the Duette for compact two-group bars or the Triplette for busy three-group operations.
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