The Eureka Mignon Single Dose Pro is the upgraded version of the popular Eureka Single Dose grinder. The initial version was already a rock-solid entry in the single-dosing space, but it also suffered from clear shortcomings—especially regarding retention and dial ergonomics. Now we have the Pro model. We put it through our full testing protocol with a critical eye on what has improved, what remains unchanged, and where there is still room for refinement.
We compared 10 single-dosing grinders in the €500 to €1000 price range. Learn more in our dedicated comparison guide.
What's New? First Impressions
The most obvious update is the new, significantly larger grind adjustment dial featuring an integrated turn counter. One full rotation increments the counter up or down by one digit. This makes switching between filter coffee and espresso dramatically easier and, above all, repeatable. If you jump between brew recipes frequently, you will love this feature. The tactile improvement of the adjustment dial is immediately noticeable and highly functional.
In addition, the grinder has been refined in key details: the hopper lid fits more securely, the chute exit has been optimized, and it now ships with an updated catch cup featuring an angled spout and flared base that sits snugly against 58 mm portafilters without spraying static coffee dust across your counter.
However, the most significant change is located inside the grinder! On the new Single Dose Pro, the upper burr is mounted from the rear using blind screws, rather than from the front face. What sounds like a minor engineering tweak changes everything for particle distribution, as we will demonstrate throughout this review.
| Metric | Eureka Mignon Single Dose Pro |
|---|---|
| Permanent Retention | 0.2 g (Predecessor: 0.3–0.4 g) |
| Temporary Retention | approx. 0.7 g |
| Grind Time (Single Dose) | 18 g in approx. 11 s |
| Grind Speed (Full Hopper) | 28 g in 10 s |
| Temperature (after 5 shots) | 32.4 °C |
| Noise Level | 81.1 dB |
| Dose Consistency (Std Dev) | 0.044 g without RDT |
| Grind Size Repeatability | Fines 30.2 → 30.5 %, Main Peak 200.5 → 203.2 µm |
Retention: Improved, but Not Quite Zero
Eureka addressed retention—at least regarding permanent retention. Permanent retention now sits at a tiny 0.2 g, down from 0.3–0.4 g on the predecessor. Temporary retention is a different story: roughly 0.7 g remains in the chute. For a dedicated single-dosing grinder, that is noticeable, even if it represents a great figure compared to traditional hopper-fed grinders.
Permanent retention improved because the upper burr is now screwed in from the rear rather than having screw holes on the grinding surface. Excellent upgrade! Additionally, the gap around the upper burr carrier mount has been narrowed.
In short: retained coffee inside the chamber is lower, but not quite at the zero-retention benchmark set by top-tier single-dosing grinders. On the plus side: static buildup is minimal, making RDT water spritzing optional.
Speaking of temporary retention: if you push the sliding gate on the hopper chute shut before using the bellows, the air puff clears the chute far more effectively because pressure isn't lost up through the hopper gap.
Speed, Noise, and Temperature
The grinder is fast. An 18 g espresso dose grinds in about 11 seconds. When feeding from a full hopper, the Single Dose Pro outputs 28 g in 10 seconds—impressive performance for such a compact body. Temperature increases remain minimal as well: averaging 32.4 °C after five consecutive doses, which won't impact coffee flavors.
Noise measures 81.1 dB—not whisper-quiet, but right in the mid-range. On a solid stone countertop, vibration sounds stay low; on lightweight kitchen furniture, the motor hum vibrates noticeably.
Workflow: Finally Convenient
Usability is a major win on the Pro model. The new grind adjustment dial with a turn counter dramatically improves repeatability. Returning to a previous recipe setting works seamlessly.
We test dial-in repeatability by recording our baseline espresso setting (T4), adjusting finer for a ristretto, shifting coarser for a lungo (T6), and finally returning visually to the initial dial mark. We then measure extraction flow times and analyze particle distribution in the lab.
A look at the particle size distribution confirms outstanding repeatability: fine percentage moved from 30.2% to 30.5%, while the primary peak shifted merely from 200.5 to 203.2 µm. That is virtually identical and represents stellar mechanical precision. Combined with the new numbered dial, this is one of the grinder's greatest strengths!
When loading 18 grams of beans, you retrieve 17.9 g to 18.0 g out. Standard deviation across doses measured a tiny 0.044 g without RDT. Keep in mind, however, that the 0.7 g temporary retention makes up part of that output dose!
The updated chute exit eliminates static mess, and the catch cup fits snugly over 58 mm portafilters for a clean transfer.
Flavor Profile: Dark Chocolate Meets Clarity
Espresso extracted with the Pro version tastes bold and rich, featuring notes of dark chocolate, marzipan, and cocoa. Body is medium, with a silky-creamy texture. The burr set delivers flavor clarity without sacrificing depth in the cup—a rare combination that Eureka executed wonderfully here. We tested using our benchmark Apas Espresso.
Particle distribution curves mirror what we taste in the cup: a sharp, dense primary peak with outstanding repeatability.
The rear-mounted upper burr design does wonders for the Eureka Single Dose Pro. The main particle peak is much narrower than on the previous generation. You can grind finer for higher extraction yields without incurring muddy astringency.
The fact that most traditional burrs use front-facing screw holes on the grinding surface is rarely discussed, yet screw recesses create turbulence zones that disrupt particle uniformity. The difference becomes glaringly obvious when comparing the particle distribution curve of the original model against the new Pro version.
Verdict: A Good Grinder Made Better
The Eureka Mignon Single Dose Pro is a highly successful update. The improvements aren't revolutionary, but they are thoughtful and effective. Usability and dial-in repeatability in particular have improved immensely. Reduced retention is a step in the right direction—even if it doesn't quite match the zero-retention benchmarks of top single-dosers.
The standout feature of this new grinder is the blind rear-mounted upper burr, which yields a far more uniform particle distribution and noticeably better espresso in the cup. Bravo, Eureka! Now, how about adopting that screw design for the lower burr too?
If you own the original version, an upgrade isn't strictly mandatory—but for anyone entering the single-dosing space fresh, this is a fantastic grinder at a fair price point. Plus, in Kaffeemacher green, it looks stunning on any counter.
