The Eureka Mignon Single Dose Pro is the new version of the popular Eureka Single Dose grinder. The first version was already a rock-solid grinder in the single-dosing segment, but it also had weaknesses – particularly in terms of retention and usability. Now comes the Pro model. We tested whether the "Pro" also translates to the cup – as always, with our full test protocol and a critical look at what has improved, what has remained the same, and where there's still room for improvement.
We compared 10 single-dosing grinders in the price range of 500 to 1000 Euros. Find out more in our article on the topic.
What's new? A first look
The most obvious change: the new, significantly larger grind adjustment dial with a counter function. A full rotation increases the round counter. This makes switching between filter and espresso much easier – and, more importantly, more reproducible. Those who regularly jump between recipes will be genuinely pleased. The tactile improvement of the grind adjustment dial is noticeable – and indeed functional.
In addition, the grinder has been revised in detail: The lid sits more securely, the spout has been improved, and there is now a new, tapered dosing cup with a bulbous base that sits better on the portafilter – and actually does so without scattering statically charged coffee dust around the kitchen.
However, the most important change is inside the grinder! The burrs in the new Single Dose Pro are now held from the back with screws, no longer from the front. What sounds trivial changes a lot, and we will keep coming back to this in the test report.
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Retention: Less, but not yet little enough
Eureka has improved on retention – at least permanent retention. This is now at 0.2 g and is reduced compared to the old version (previously 0.3–0.4 g permanent). With temporary retention, it's a different story: 0.7 g remains realistic. This isn't particularly good for a single-dosing grinder – even if it's a good value compared to grinders with hoppers.
Permanent retention has improved because the upper burr is now screwed from above – i.e., from the back. Really great! In addition, a slot in the burr mounting has been reduced.
In short: The residue in the grinder is less, but not as little as one would expect from the best grinders in the single dosing class. Nevertheless: The static charge is low, RDT is not necessary.
Speaking of temporary retention: if you push the slider on the bean hopper into the grinder, the grinder blows out the coffee more effectively, as the side slot is closed and thus all the blowing force goes into the grinder.
Speed, Volume, Temperature
The grinder is fast. 18 g of espresso are ground in about 11 seconds. With a full bean hopper, the Single Dose Pro can grind 28 g in 10 seconds. This is impressive for such a compact grinder. The temperature increase also remains within limits: an average of 32.4 °C after five shots – unproblematic for the aromas.
The noise level is 81.1 dB – not whisper-quiet, but in the mid-range. Those with a solid countertop will hear less. On lighter furniture, it vibrates noticeably.
Operation: Finally comfortable
The operation is a big plus for the Pro model. The new grind adjustment wheel with counting greatly aids reproducibility. Returning to a previous grind setting is also effortless.
We determine this by switching from the standard recipe (T4) to Ristretto, then Lungo (T6), and back to Espresso. When resetting, we only adjust visually to a noted grind setting. Afterwards, we measure the extraction time and also compare the particle distribution using laboratory measurements.
A look at the particle distribution helps in assessing reproducibility. The fine peak shifted from 30.2% to 30.5%, the main peak from 200.5 to 203.2 microns. This is almost no difference at all and an outstandingly good value. With the new grind adjustment dial, this is a real strength of the grinder!
If you put in 18 grams of coffee, you also get 17.9 or 18 grams out of the grinder. The standard deviation here, without RDT, was only 0.044 g. But be careful – the 0.7 grams of coffee from the retention are part of the 18 grams dispensed!
The dosing aid reduces static loss, the dosing cup works well and sits stably on the portafilter.
A real update compared to the old version: things have changed here – and you notice it in everyday use.
Taste: Dark chocolate meets clarity
The espresso from the Pro version is bold, with notes of dark chocolate, marzipan, and cocoa. The body is medium, the texture silky-creamy. The grinder brings clarity to the cup without losing depth. This is a combination that is rarely achieved – and has been beautifully implemented here. We drank our Apas Espresso, which we frequently use in grinder and machine tests.
The particle distribution curves show what we taste: a clear, dense main peak with good reproducibility.
The new Eureka Single Dose Pro benefits greatly from the top burr being screwed in from the back. The grinder's main peak is much narrower than that of the previous version. We can grind very finely without losing clarity.
The fact that many burrs are attached with screws through the burr itself is rarely discussed. This is actually astonishing, as every flaw on a burr otherwise leads to a major drama and the purchase of new burrs. Yet, the screw openings have such a significant influence on the overall grinder geometry. This becomes obvious when you compare the old particle distribution curve with the new one.
Conclusion: Good grinder gets better
The Eureka Mignon Single Dose Pro is a successful update. The improvements are not spectacular, but well thought out. Above all, reproducibility and everyday usability have been significantly increased. The reduced retention is a step in the right direction – but it still doesn't reach the level of the best single-dosing grinders.
The best thing about the new grinder is the rear-mounted burr, which leads to a more uniform particle distribution and thus to better espresso. Bravo Eureka, this is a good way to go! Now, what about the other burr?
Those who own the first version don't necessarily have to upgrade – but newcomers will get a very good grinder for a fair price. And: it simply looks incredibly good in Kaffeemacher green. What also distinguishes the grinder: it is manufactured in Europe, and the availability of spare parts and repair options are ensured thanks to competent specialist workshops in Germany, Switzerland, and Austria.
