The Eureka Mignon Single Dose Pro is the updated version of the popular Eureka Single Dose grinder. The first generation was already a highly solid entry into the single-dosing market, though it had its flaws—particularly regarding retention and usability. Enter the Pro model. We put it through our rigorous testing protocol to see if the "Pro" label actually translates to better results in the cup, taking a critical look at what has improved, what stayed the same, and where there is still room for growth.
We tested 10 single-dosing grinders in the €500 to €1,000 price range. Read the full results in our detailed comparison article.
What's New? A First Look
The most obvious change is the new, significantly larger grind adjustment dial with a built-in revolution counter. Turning the dial past zero ticks the counter up by one full rotation. This makes switching between espresso and filter grind settings much easier—and above all, highly repeatable. Anyone who frequently switches brew recipes will love this feature. The tactile improvement of the dial is immediately noticeable and highly functional.
The grinder has also been refined in its details: The hopper lid fits more securely, the exit chute has been improved, and it now comes with a redesigned dosing cup. The new cup has a tapered top and a flared base, allowing it to sit perfectly in the portafilter—and effectively transferring grounds without scattering static-charged coffee dust all over your kitchen counter.
However, the most crucial upgrade is hidden inside the grinder! On the new Single Dose Pro, the upper burr is mounted with screws from behind (from the top down), rather than from the front (the grinding face). While this sounds like a trivial detail, it changes everything about the grind geometry, a point we will return to repeatedly in this review.
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| Metric | Eureka Mignon Single Dose Pro |
|---|---|
| Permanent Retention | 0.2 g (Previous model: 0.3–0.4 g) |
| Exchange Retention | approx. 0.7 g |
| Grind Time (Single Dose) | 18 g in approx. 11 s |
| Grinding Capacity (Full Hopper) | 28 g in 10 s |
| Temperature after 5 Shots | 32.4 °C |
| Noise Level | 81.1 dB |
| Dosing Accuracy (Std. Dev.) | 0.044 g without RDT |
| Grind Repeatability | Fines ratio 30.2 → 30.5 %, Main peak 200.5 → 203.2 µm |
Retention: Reduced, but Not the Best in Class
Eureka has made progress on retention—at least concerning permanent retention. It now sits at just 0.2 g, a noticeable reduction compared to the older version (previously 0.3–0.4 g permanent). However, exchange (temporary) retention is a different story: roughly 0.7 g remains in the chute. While this is excellent compared to traditional hopper grinders, it is merely average for a dedicated single-dosing grinder.
The improvement in permanent retention is largely due to the new burr mounting design. Because the upper burr is screwed in from behind, there are no screw holes on the grinding face where coffee can get trapped. Brilliant! Furthermore, a gap in the burr carrier suspension was minimized to prevent coffee buildup.
In short: Ground coffee residue is lower, but still not as low as you would expect from the absolute best grinders in the single-dosing category. On the plus side: static buildup is minimal, meaning RDT (water spraying) is not strictly necessary.
Speaking of exchange retention: When you push the metal slide tab back into the bean hopper chute before using the bellows, the grinder clears out coffee much more effectively. Closing the side slot ensures that the full force of the air blast goes straight through the burrs.
Speed, Noise Level, Temperature
The grinder is fast. It grinds an 18 g espresso dose in about 11 seconds. When loaded as a traditional hopper grinder, the Single Dose Pro outputs 28 g in 10 seconds. That is impressive for such a compact machine. Temperature buildup is also well managed: averaging 32.4 °C after five consecutive doses, which is perfectly safe for preserving coffee aromatics.
The noise level measures 81.1 dB—not whisper-quiet, but firmly in the middle of the pack. If you have a solid, heavy countertop, it will sound quieter. On lighter furniture, you will feel the vibrations distinctly.
Usability: Finally Comfortable to Dial In
The usability is a massive upgrade on the Pro model. The new, larger adjustment dial with a revolution counter makes finding and returning to specific settings incredibly easy and reproducible.
We tested this by starting at a standard espresso setting (T4), adjusting finer for ristretto, then coarser for lungo (T6), and finally returning to the initial espresso setting. We did this visually by returning to the exact noted number on the dial. We then measured extraction time and ran a laboratory particle distribution analysis.
Looking at the particle size distribution confirms its precision. The fines ratio shifted marginally from 30.2% to 30.5%, while the primary peak moved slightly from 200.5 to 203.2 µm. That is practically identical and an exceptionally good result. The new dial turns adjustment repeatability into a genuine strength of this grinder!
If you feed 18 grams of coffee into the hopper, you get exactly 17.9 or 18.0 grams back out. The standard deviation here, even without RDT, was a mere 0.044 g. But keep in mind—the 0.7 grams of exchange retention are mixed into those 18 grams!
The anti-static design minimizes retention losses, and the new dosing cup works wonderfully, sitting perfectly flush on the portafilter.
This is a real, tangible upgrade over the previous version—and you feel the difference every single morning.
Taste: Dark Chocolate Meets Clarity
Espresso from the Pro version is bold, featuring notes of dark chocolate, marzipan, and cocoa. The body is medium-heavy with a silky-creamy texture. The grinder delivers excellent clarity in the cup without sacrificing depth. That is a tricky balance to strike, and Eureka nailed it here. For our tasting, we used our Apas Espresso, a roast we frequently rely on for grinder and machine testing.
The particle distribution curves reflect exactly what we taste: a tight, dense primary peak with excellent repeatability.
The new rear-mounted upper burr does wonders for the Eureka Single Dose Pro. The primary particle peak is significantly narrower than on the previous version. This allows us to grind much finer while maintaining excellent flavor clarity.
It is rarely discussed that many flat burrs have mounting screws drilled straight through the grinding face. This is surprising, given that even the smallest nick on a burr edge causes panic and prompts owners to buy replacement burrs. Yet, large screw holes interrupt the grinding path and heavily influence the burr geometry. The impact becomes obvious the moment you overlay the particle distribution curve of the old burr design with the new one.
Verdict: A Good Grinder Made Better
The Eureka Mignon Single Dose Pro is a highly successful update. The improvements aren't overly flashy, but they are incredibly well thought out. Grind repeatability and daily usability have been drastically improved. The reduced permanent retention is a step in the right direction—even if exchange retention hasn't quite reached the level of the absolute top-tier single-dosing grinders.
The standout feature of the new grinder is the rear-mounted upper burr, which delivers a much more uniform particle distribution and consequently better-tasting espresso. Bravo Eureka, this is the right path! Now, how about updating the lower burr to match?
If you own the first generation, there is no urgent need to upgrade—but if you are buying your first single-dosing grinder, you are getting an excellent machine at a very fair price. Plus: it looks absolutely stunning in Kaffeemacher Green. Another major advantage: it is manufactured in Europe, and finding spare parts or repair services is easy thanks to competent service partners across Germany, Switzerland, and Austria.
