Eureka - Mignon Zero 55S Single-Dose Espresso Grinder

Zero waste. Zero noise. Zero complications.

The Eureka Mignon Zero 55S is a compact single-dose coffee grinder designed for home baristas who want freshly ground coffee, precise adjustment and minimal retention. Its 55 mm flat hardened-steel burrs, patented stepless micrometric adjustment and quiet operation provide the control required to dial in espresso with confidence.

Add only the coffee needed for each preparation, grind it fresh and use the integrated Blow Up System to help clear remaining grounds from the grinding chamber. The result is a clean, repeatable workflow that makes it easier to switch coffees without leaving old grounds behind.

Single-Dose Workflow

Weigh your beans before grinding and prepare one dose at a time. This workflow preserves freshness, makes it easier to change coffees and eliminates the need to leave beans sitting in a traditional hopper.

55 mm Flat Hardened-Steel Burrs

The 55 mm flat burr set delivers uniform grounds and dependable performance for espresso while remaining versatile enough for moka pot, drip and other brewing methods.

Anti-Retention and Blow Up Systems

Eureka designed the Zero 55S to minimize the amount of coffee retained inside the grinder. After grinding, press the bellows to help move remaining grounds through the chute and into the dosing cup.

Patented Stepless Micrometric Adjustment

Eureka's stepless adjustment system gives you precise control over grind size without locking you into preset steps. Fine adjustments make it easier to dial in different coffees, doses and espresso recipes.

King-Size Adjustment Dial

The enlarged adjustment dial improves control and visibility, allowing small grind changes to be made more comfortably and accurately.

Silent Technology

Eureka's noise-reducing design helps keep grinding quieter, making the Zero 55S well suited to kitchens, condos, offices and early-morning espresso routines.

ACE Anti-Clump and Anti-Static System

The ACE System helps reduce clumping and static while promoting a cleaner flow of ground coffee from the chute into the dosing cup.

Dosing Cup Holder with Easy Switch

A simple metal lever activates the grinder while the adjustable holder supports the included dosing cup, creating a smooth and practical single-dose workflow.

Technical Specifications

• Brand: Eureka
• Model: Mignon Zero 55S
• Grinder Type: Manual single-dose coffee grinder
• Recommended Use: Espresso, Turkish, moka, drip and French press
• Burr Type: Flat
• Burr Diameter: 55 mm
• Burr Material: Hardened steel
• Grind Adjustment: Patented stepless micrometric adjustment
• Motor: Direct-drive
• Motor Speed: Approximately 1,650 RPM at 60 Hz
• Power: 310 W
• Voltage: 110–120 V for the Canadian market
• Grinding Output: Approximately 1.8–2.5 g/s for espresso
• Single-Dose Hopper Capacity: Approximately 45 g
• Controls: Manual side activation
• Display: No
• Anti-Retention System: Yes
• Blow Up System: Yes
• Silent Technology: Yes
• ACE Anti-Clump and Anti-Static System: Yes
• Body: Die-cast aluminum
• Finish: Matte Black
• Approximate Dimensions: 120 mm W × 215 mm D × 363 mm H
• Approximate Weight: 5.6 kg
• Made in: Chine

Inside the Box

• Eureka Mignon Zero 55S grinder
• Single-dose hopper with Blow Up bellows
• Stainless-steel dosing cup
• Adjustable dosing cup holder
• User manual

Why Choose a Single-Dose Grinder?

• Grind only the amount of coffee needed
• Keep beans stored in a dedicated airtight container
• Switch between different coffees more easily
• Reduce the amount of stale coffee retained inside the grinder
• Measure input and output for a more repeatable workflow
• Enjoy freshly ground coffee for every preparation

Perfect For

• Home espresso enthusiasts
• Customers who regularly change coffee beans
• Single-origin and specialty coffee
• Espresso recipe experimentation
• Compact home coffee stations
• Anyone seeking a quieter grinder

Eureka Mignon Zero 55S — Frequently Asked Questions

1. Is the Eureka Mignon Zero 55S designed for espresso?

Yes. Its 55 mm flat burrs and stepless micrometric adjustment provide the precision needed to dial in espresso.

2. What does single dosing mean?

Single dosing means weighing the beans required for one preparation, placing only that amount in the hopper and grinding the complete dose.

3. What is the Blow Up System?

The Blow Up System uses a bellows above the hopper to help push retained grounds through the grinding chamber and chute after grinding.

4. Does the grinder have low retention?

Yes. Its Anti-Retention and Blow Up systems are designed to minimize the amount of coffee remaining inside the grinder.

5. Are the burrs flat or conical?

The Zero 55S uses 55 mm flat hardened-steel burrs.

6. Is the grind adjustment stepped?

No. It uses Eureka's patented stepless micrometric adjustment system, allowing very small and precise grind changes.

7. Can it grind for filter coffee?

Yes. Eureka recommends the Zero 55S for several methods, including espresso, moka, drip and French press. Switching between very different grind ranges may require multiple turns of the adjustment dial.

8. Is the Eureka Mignon Zero 55S quiet?

Yes. Eureka's Silent Technology reduces operating noise compared with conventional grinder designs.

9. Does it include a dosing cup?

Yes. A stainless-steel dosing cup and an adjustable dosing cup holder are included.

10. Is it suitable for commercial use?

The Zero 55S is primarily designed for home and light-duty use. Higher-volume cafés should consider a dedicated commercial grinder.