Eureka - Oro Prometheus (DEMO)

This product was used as a demonstration unit and remains in excellent, near-new condition. It has been carefully maintained and shows minimal to no signs of use.

The unit comes does not come with its original packaging, but is fully covered by the complete manufacturer’s warranty.

No additional discounts can be applied.

Pure innovation for the modern barista.

The Eureka ORO Prometheus is a high-performance commercial espresso grinder engineered for demanding cafés that require speed, precision, consistency and intelligent workflow control.

Built around massive 85 mm flat Pure Diamond burrs and Eureka's latest commercial technologies, the Prometheus combines extremely low retention, electronic burr positioning, automatic portafilter recognition, active temperature management and IoT connectivity in one professional platform.

85 mm Pure Diamond Flat Burrs

The Prometheus uses 85 mm flat burrs manufactured with Eureka's patented Pure Diamond material. The large burr surface is designed for fast, consistent grinding in demanding commercial service.

Extremely Low Retention

Eureka's new ELR System combines a specially designed sloped grinding chamber with an optimized internal pathway to reduce retained coffee and help ensure that freshly ground coffee reaches the portafilter.

Automatic Portafilter Recognition

The patented automatic filter-holder recognition system identifies the portafilter without requiring the barista to manually select the dose, reducing workflow errors and unnecessary coffee waste.

Electronic Burr Position Adjustment

Grind adjustment is controlled electronically and can be managed directly from the touchscreen or the regulation knob. This allows the barista to control burr positioning with exceptional precision.

Touch Display with Programmable Doses

The integrated touch display provides three programmable doses, an Extra Dose mode and maintenance alerts, helping streamline service during busy periods.

Integrated IoT Connectivity

Built-in IoT connectivity works with dedicated applications for both coffee roasters and users, enabling remote monitoring of grinder operation and performance data.

Cool Grinder Temperature Management

The grinding chamber is monitored continuously and supported by a forced cooling system. This helps maintain more stable grinding performance over extended periods of commercial use.

Silent Technology

Eureka's Silent Technology reduces grinding noise by more than 20 dB compared with conventional grinders, helping create a more comfortable café environment for staff and customers.

High-Speed Grinding

The optimized motor and burr configuration is designed for rapid dispensing while controlling the temperature of freshly ground coffee. Eureka specifies high-speed output in the range of approximately 7.5 to 11 g/s depending on operating conditions and grind setting.

Fast Burr Maintenance

The Prometheus is engineered to allow high-speed burr maintenance without losing the current grind setting, reducing downtime during routine service.

Hands-Free Portafilter Fork

The adjustable all-purpose fork supports hands-free grinding and accommodates a wide range of portafilters, including bottomless models.

Bean Hopper Safety System

An integrated hopper security system supports safer handling and operation in professional environments.

Key Features

• 85 mm flat Pure Diamond burrs
• Patented Eureka burr material
• Electronic burr-position adjustment
• Automatic portafilter recognition
• ELR Extremely Low Retention system
• Integrated IoT connectivity
• Cool Grinder temperature monitoring
• Forced grinding-chamber cooling
• Silent Technology
• Three programmable doses
• Extra Dose mode
• Maintenance alerts
• Dose counter
• Hands-free adjustable portafilter fork
• High-speed burr maintenance
• Bean hopper security system

Technical Specifications

• Brand: Eureka
• Line: Eureka ORO
• Model: Prometheus
• Product Type: Commercial on-demand espresso grinder
• Burr Type: Flat
• Burr Diameter: 85 mm
• Burr Material: Pure Diamond, patented Eureka
• Program Type: Electronic
• Dose Counter: Yes
• Programmable Doses: 3
• Extra Dose Mode: Yes
• Maintenance Alert: Yes
• Automatic Portafilter Recognition: Yes
• Electronic Burr Adjustment: Yes
• IoT Connectivity: Yes
• Cool Grinder System: Yes
• Silent Technology: Yes
• Motor Speed: 1,350 RPM
• Power: 510 W
• Manufacturer-Listed Productivity: 6–9.5
• High-Speed Dispensing Reference: Approximately 7.5–11 g/s
• Bean Hopper Capacity: 1.2 kg
• Height: 570 mm
• Width: 230 mm
• Depth: 240 mm
• Weight: 23 kg

Available Colours

• Matte Black
• White
• Chrome

Ideal For

• High-volume specialty cafés
• Busy espresso bars
• Restaurants with premium coffee programs
• Coffee roasters operating retail cafés
• Professional baristas who require fast dose delivery
• Operations that want grinder monitoring and performance data

Frequently Asked Questions

1. What burrs does the Eureka ORO Prometheus use?

It uses 85 mm flat burrs made from Eureka's patented Pure Diamond material.

2. Is the Prometheus designed for commercial use?

Yes. Eureka lists it as a commercial grinder designed for professional barista environments.

3. What is the ELR System?

The Extremely Low Retention system uses a sloped grinding chamber to minimize coffee retained inside the grinder.

4. Does it recognize the portafilter automatically?

Yes. Eureka's patented automatic filter-holder recognition system can identify the portafilter without requiring manual dose selection.

5. How is the grind size adjusted?

Burr positioning is adjusted electronically from either the touchscreen or the grinder's regulation knob.

6. How many doses can be programmed?

The touchscreen supports three programmable doses plus an Extra Dose mode.

7. Does it connect to an app?

Yes. Integrated IoT connectivity supports dedicated applications for users and coffee roasters.

8. Does the Prometheus have active cooling?

Yes. Its Cool Grinder system monitors grinding-chamber temperature and works with forced cooling to help maintain stable performance.

9. Is it quieter than a conventional commercial grinder?

Yes. Eureka states that Silent Technology reduces grinding noise by more than 20 dB compared with conventional grinders.

10. How fast does it grind?

Eureka describes a high-speed dispensing range of approximately 7.5 to 11 grams per second, depending on operating conditions.

11. How large is the bean hopper?

The hopper holds approximately 1.2 kg of coffee beans.

12. Can it hold a bottomless portafilter?

Yes. The adjustable hands-free fork is designed to accommodate different portafilter styles, including naked or bottomless portafilters.

13. Will cleaning the burrs change the grind setting?

The grinder is designed for high-speed burr maintenance without losing the current grind setting.

14. What colours are available?

Eureka lists Matte Black and White as standard colours and Chrome as a special colour.