Eureka Mignon Manuale Review: Affordable espresso entry-level and hidden gem with upgrades

Eureka's product range is often as opaque as a poorly extracted espresso. There's the Silenzio, the Specialita, the Perfetto – and at the very bottom of the price hierarchy sits the Eureka Mignon Manuale. With a street price of around 240 francs (or euros), it's the cheapest ticket into the world of Italian traditional grinders.

The grinder was developed at a time when Single Dosing was not yet a topic for the mass market. But mechanically, it actually works exactly like such a grinder: it has an on and off switch – and that's it. No programmable time, no portions. That's exactly how modern single dosing grinders work, except that they've been further optimized, primarily to reduce the retention.

Retention is the area of a grinder that fills with ground coffee residue that isn't directly dispensed during extraction. Without optimization, we measure around 3 grams of retention on the Manuale. That's quite typical for an old-school "dosing grinder." However, if we make optimizations ourselves, this value drops significantly.

That's why this test report is simultaneously a guide for how you can turn the classic Mignon Manuale into a budget single dosing grinder with Eureka quality. Why is it worth it? Because the particle distribution and espresso quality absolutely speak in favor of this grinder!

Still unsure whether the Manuale is the right Eureka? Our overview of all Eureka grinders helps with the choice.

Working the Traditional Way with the Mignon Manuale

Without timed dosing and with a simple bean hopper, many of the cheaper espresso grinders came equipped when "Grinding on Demand" became popular both at home and in gastronomy. Instead of into a dosing chamber, coffee is ground directly into the portafilter. Home baristas used to control the amount often by eye. A few actually weighed the dispensed amount.

Since the dispensed amount is crucial for adhering to the brewing recipe, we teach strict weighing in our Home Barista courses. This works quite easily with the Eureka Mignon Manuale: we position a scale in front of the grinder and grind directly into a dosing container that sits on the scale. When the target amount is reached – let's say 18 grams of coffee for a double espresso – we stop grinding manually.

The coffee is then poured from the dosing container into the portafilter, tamped, and then the espresso is extracted.

Haptics: The Solid Eureka Foundation

A Eureka is, in almost every price class, a Eureka. And yes, the Mignon series with its solid, milled aluminum body barely differs from the Manuale to the expensive Oro XL in terms of basic quality.

However, the Manuale unfortunately comes with the small, tiny, and repeatedly criticized by us mini grind adjustment wheel. If you only want one single upgrade on the grinder, then this is it: swap the wheel for a larger one. Precise espresso adjustment is otherwise virtually impossible. The larger the diameter, the more finely you can control the adjustment and especially note it.

The adjustment is essentially stepless. However, you only notice that with a different wheel. If you adjust the grind setting with the small original wheel, you automatically jump in larger increments each time. There's no sense of orientation and returning to a previous recipe is simply impossible.

Otherwise, the Manuale features the aforementioned on switch, 50 mm flat parallel burrs, and a bean hopper with a capacity of around 300 grams. One detail is annoying in everyday use: if you slide the slider in and remove the hopper, about 11.5 grams of coffee remain in the shaft, which would have to be laboriously removed before switching beans.

The Mignon Manuale is 35 cm high, 14 cm deep (with plug 16 cm), 12 cm wide and weighs 5.6 kilograms. The burrs rotate at a fixed speed of 1350 revolutions per minute.

In Operation: Not for Sensitive Ears

Before we talk about the quality of the ground coffee, we need to talk about the noise level. The name "Silenzio" on the more expensive models doesn't come from nowhere, because the Manuale doesn't have any of the sound dampening found in them. In testing, we measure a hefty 86.6 decibels. That's loud. Really loud. For comparison: the dampened Specialita is closer to 78 decibels. If you want to make espresso in the morning without waking the whole house, you won't make friends with the Manuale.

The speed is also rather leisurely. For 18 grams of espresso beans, the grinder needs about 17.4 seconds. Without countermeasures, the grinder also scatters quite a bit, and the coffee grounds don't just land in the portafilter, but also like to end up on the work surface due to static charge.

The Lab: Surprising Inner Values

We took the grinder apart and measured it. Inside, 50-millimeter burrs made of hardened steel work, classically screwed through the burr. A critical point for any grinder is the retention. When we use the grinder with the standard bean hopper, it retains a total of about 3.2 grams of coffee grounds inside. That's relatively little for a dosing grinder, but a lot in the age of single dosing – especially if you want to use the grinder that way.

If, for example, we put 18 grams of coffee into the empty grinder, we lose up to 2.4 grams in the so-called interchangeable retention. The permanent retention, which essentially never sees the light of day, comprises another 0.8 grams.

Particle Distribution: The Secret Star

We had the ground coffee from the Manuale measured in collaboration with ZHAW (Zurich University of Teacher Education). In this standardized measurement procedure, which we've already performed on over 90 grinders, the small 50mm burrs show a surprisingly homogeneous picture.

We arrive at a main peak of 200.8 microns, which is very narrow and good. Many particles are similarly sized and are therefore extracted evenly. This contrasts with a rather higher fine peak, i.e., fine particles, which provide good resistance in the portafilter (puck).

Interestingly, the inexpensive Manuale grinds here "cleaner" and with a narrower peak than, for example, a Niche Zero, which costs significantly more. The grinding mechanism thus delivers a quality that is far above what the price would suggest. That's a real statement to the competition.

The Upgrade: From Beginner to Single Dosing Expert

The good particle distribution invites you to further optimize the grinder – and this is possible thanks to many available third-party accessories. We ourselves identified the three most sensible upgrades:

• The larger grind adjustment wheel ("King Size")
• The single dosing bellows (hopper)
• A better ground coffee guide (funnel)

Since we were bothered by the small adjustment wheel and the retention, we modified it. First, we replaced the tiny original wheel with a larger one, which Eureka itself calls the "King Size" wheel. This finally allows for a sensitive and precise adjustment of the grind setting.

The real breakthrough is the conversion to single dosing. We removed the standard hopper and replaced it with a bellows attachment. When you press the bellows at the end of the grinding process, you actively push the coffee residue out of the grinding chamber.

The lab result is impressive: retention reduces to 0.1 to 0.2 grams. Suddenly, the 240-franc grinder is playing in the same league as dedicated single-dosing grinders, which often cost twice or three times as much. If you make this small modification, you significantly upgrade the machine.

The small, attachable discharge guide ensures that the ground coffee lands better in the dosing container. Yes, that too is a worthwhile investment, as is a small scale for weighing out the coffee powder amount.

Taste in the Cup

Measurements are important, but does the espresso taste good too? We tasted various roasts, including our dark Apas and medium roasts. Because the particle distribution is very homogeneous, we manage to create espressos with a nice texture and a round body.

The grinder is excellent for classic, dark to medium roasts. Here it shows its strengths in full and delivers results that are barely distinguishable from much more expensive grinders.

However, if you primarily drink very light, fruity roasts, you might hit some limits. We often couldn't set the grinder fine enough – lighter roasts demand an even finer grind setting to develop sufficient resistance in the portafilter. In our experiments, we even heard the burrs grinding against each other before the espresso ran slowly enough. That's not for light roast lovers. So we switched back to medium roasts like the Toca or Apas, where the grinder shines.

Conclusion: The Best Grinder Under 300 Francs?

The Eureka Mignon Manuale is a fascinating device. "Out of the box," it's loud and somewhat tricky to operate. But at its heart – in the grinding mechanism and motor – good Eureka quality awaits.

The grind adjustment in the base version is challenging, which can be solved by upgrading the adjustment wheel. Then it becomes possible to switch reproducibly between recipes and coffees. The grinding speed is slow, and to thoroughly clean the grinder (cleaning), you first need to loosen some screws. That's impractical.

And yet: above all, the espresso in the cup convinces thanks to very good grind uniformity. And that's why the Eureka Mignon Manuale is an interesting grinder that – especially as a single dosing grinder with some upgrades – offers a very exciting entry into the world of espresso.

We think that with the appropriate upgrades, the grinder doesn't need to hide behind hyped models like the Varia VS3 or the DF54 for its price. You just have to do a little work yourself, but then the grinder is fun and makes damn good coffee!