• Grinders
  • Deciphering the Eureka Mignon line

So I think Eureka is about to launch a few new models, and I was trying to make sense of them relative to their current models through this post.

I am ignoring their 8 models with 50mm burrs & their brew-specific models in 55mm

65mm + 1650 RPM motor + rubber-topped forks

Mignon Turbo [standard burrs - Non-Oro knob]

Mignon XL [hardened burrs + ‘Mignon mat kit’ (gigantic) + ORO knob]

Mignon Stark [hardened burrs + (rubber?) base/foot + ORO knob]

Mignon SingleDose [hardened burrs + ‘Single-dosy things’ - missing electronic controls + ORO knob]

The Stark looks like a replacement for the XL. The spec sheets differ by mention of “premium materials” & “Extra-comfort knob”; which seem to be present already on the XL. It is almost certainly cheaper to ship out a model with new foot/base instead of a giant rubber mignon mat kit. The mat or rubber feet must be to address the complaints that the XL walked around too easily on a hard surface. Note while the Stark spec. sheet lists it to be about 50mm shorter than the XL and the same size as the Dolce Vita(below), this looks to be an error because the images show a body aspect ratio much closer to the XL than the Dolce Vita. It’s larger footprint(+6-8mm) appears to be due to the black base/foot.

It’s interesting that the Turbo gets the rubber-topped fork.

55mm + 1350 RPM motor (two body heights)

Mignon Specialita [standard burrs + 350mm height]

Mignon Design [standard burrs + 330mm height]

Mignon Dolce Vita [hardened burrs + ~330mm height + (rubber?) base/foot + ORO knob + rubber-topped fork]

Mignon Zero [standard burrs + 350mm height + ‘Single-dosy things’ - Electronics]

There may be a few other differences, but I think these are among the most significant. I believe all of the ORO-knob models have ‘premium materials’, but whether they have the same upgraded components isn’t clear. Anything to add?

It looks like they hired some new product marketers…it’s all so confusing with the number of models they have.

I thought Mignon Design grinders had a stone or wood veneer over the aluminum frame with a matching wooden hopper lid. In the US, they come with the hardened burrs. I don’t know why these weren’t considered ORO, maybe they will make an ORO version with the upgraded fork and knob. The are also slightly shorter than the 50/55mm Mignons. They cost the same as the Chrome ORO XL in the US.

Regarding the ORO Line, I think the premium materials are just the metal hopper lid and new base. The XL has the metal chute, which is just a stainless steel channel that rests inside the plastic chute…maybe it helps with static. I don’t see this mentioned for the Dolce Vita, but it’s listed for the Turbo…maybe it’s only used with the 65mm grinders.

It’s worth noting that the body of the Turbo is different than the XL and the Stark, it looks more like the Specialita. Also the Dolce Vita appears to have a similar body to the Design, minus the veneer, based on the switch position

We have a model in the US called the Magnifico, which is essentially a Specialita with the hardened burrs. It looks like the Dolce Vita is an upgrade to that with the new base, lid, larger knob, and rubber fork.

I like the gigantic mat, for the reason that people hate it. Loose coffee sticks to it so it keeps my counter clean, but it is hard to clean. The tamping station is ok, it has the same rubber coating as the fork, and it started peeling as soon as I started using it. I thought it was included with the XL to make good on the noise claim, but I can also see how the grinder likes to torque around without it.

    In a way, this sort of approach really puts off a brand. It’s like going to a restaurant and finding 30 choices of meal choices in the menu.

    logjames What a magnifico response! I totally forgot about the magnifico. I just pulled up Eureka’s website to find models, but for whatever reason that one is not on their page (or I looked in the wrong spot), so I didn’t include it. While I do like options and customisation, it would be nice if the names were more helpful: it’s not obvious that ‘dolce vita’, is the feature-rich version of the ‘magnifico’, which is the more durable version of the ‘specialita’.

    Regarding what features go into ORO, they could also make that so much clearer. It’s hard to know when a feature is missing versus just missing on the spec sheet. I didn’t want to list the different ORO features because I could tell their marketing team hadn’t gone through the lists to make them consistent. The knob seems like the most important one.

    -

    I thought that I would add some thoughts on prospective costs. The new Mignon Stark & Dolce Vita are listed by a german distributor, DieCrema, and relative to the Specialita’s cost (€429); the upgrade costs are:…

    Magnifico: €60; (hardened burrs)

    Dolce Vita: €80; (hardened burrs, features)

    Stark: €160; (bigger burrs, hardened burrs, features)

    & looking at BellaBarista (Specialita £359)

    Turbo: £120 (bigger burrs)

    XL: £220 (bigger burrs, hardened burrs, features, mat kit)
    The XL doesn’t look great relative to the cost of the Stark.

    I don’t see anyone carrying the Stark here in the US. The XL retails for $899, which is an awful price relative to your comparison. I bought mine from Espresso Coffee Shop back in May for €622 with shipping to the US (577(with 11 discount) + 45), which is close to the cost you mentioned. The Turbo is currently listed for €588… exact same price without hardened burs and the gigantic mat kit. Maybe their pricing is messed up, or the XL is going to get a price increase.

    3 months later

    hi there, thanks for your explanations. thinking of buying a specialita or a dolce vita. but is the price difference of about 140€ worth it? i can get a specialita in chrome for about 420€.

    the dolce vita seems to have electronical distance measuring of the burrs. is this important? never had a grinder before. how do i know what distance to set the machine? how do i find point zero on older machines? what do you think of that electronical thing? also, whats the app for the new oro line?

    damn, i find the product line confusing…

    thanks

      stuefi the dolce vita seems to have electronical distance measuring of the burrs. is this important?

      you mean it has a cog on the adjustment dial that turns a little wheel and turns those confusing set of numbers from 1 - 9 on the knob into another confusing and no more accurate set of numbers on a screen?

      Point Zero Is both a film, funnily enough Zero Point is as well. it’s the point at which the grinder burrs touch. Normally found by either running the grinder, or tunring one of the burrs by hand, whilst making the grind finer and finer until you hear a rhythmic schrooch, schrooch, schrooch sound as the burrs rub together, or a constand schrrrrrrr!!!!, if you’re heavy handed. If turning the burr by hand you will feel and hear the zero point. The grinder should be completely clean inside when performing this adjustment (the outside can be dirty, it doesn’t matter). Once the Zero point is found the adjustment system can be altered to indicate the new zero point, or not on some grinders. This is achieved by a marker pen, unsticking and resticking a dial, moving a pointer or twiddling a knob after loosening a grubscrew,

      I don’t know what an app is, what I do know is I never used a grinder and thought…damm, I really need an app for this!

        A lot of people love the specialita. I doubt the espresso is improved any in the Dolce Vita, and the features are “nice to haves”. The specialita is a functional grinder that few complain too much about.

        That said, I would do the dolce vita because it’s a slightly nicer version of what so many people have and enjoy without any likely drawbacks (possibly version 1 issues, but hopefully the XL rollout and it’s new features took care of a lot of those). So that would please me, but it wouldn’t likely be as wise of a proportioning of funds.

        thanks for your answers DavecUK and Jcheney. i guess, i’ll stick to the specialita then.

        DavecUK Hey Dave, could you comment if the sound at touch reflects anything on alignment? I’ve heard a youtuber saying that a non-uniform sound (rhythmic schrooch, schrooch vs constant schrrrr) indicates one side touching more therefore indicating alignment that is off. Any truth to that?

          hthec Yes, it does, but it’s not quite that simple. It depends on the degree of sound, rhythmic whisper to a rhythmic roar, before ending in a loud continuous rub. Or a whisper to a relatively quite glide….And over how many microns these changes happen.

          Shimming burrs and marker pens isn’t that effective, because already significant pressure in engineering terms is required to make a mark in marker.

          Aluminium foil is commonly used to shim and the thinnest foil is about 20 micron, more heavier duty foils can be 2 or 3 times thicker. A human blood cell is 5-7 micron diameter and the burrs themselves can have variances up to 5 micron, or more depending on manufacturer. Certain types of variance can’t be shimmed out.

          To put it in perspective a human hair is a massive 70 micron.

          On a very well aligned grinder moving the burrs 12 micron further apart can add/deduct 4-6 sec or more on espresso shot time, depending on a few factors.

          A grinder needs to have very fine adjustability to be suitable for espresso.

          Most commercial grinders are not well aligned at all. Single dosers need to be very well aligned. It’s a very big subject, one that when well understood, explains many things we see in grinders. Even some revered grinder manufacturers have said things to customers about using washers under the burrs, which clearly displays a misconception about burrs and alignment.

          A very rough rule of thumb, the closer you are to burr touching for espresso, the progressively worse your burrs are aligned. So if you are 6 to 10 micron away from burr touching, then the burr alignment is not great which has other effects as well. If you are 30-40 micron from burr touching for espresso, or more depending on coffee, you’re doing great!

          P.S. the above applies to single dosing a flat burr grinder.

            DavecUK rhythmic whisper to a rhythmic roar, before ending in a loud continuous rub

            for me it’s like this. How many microns, I can’t say. It takes place over about 1/6th turn of the dial, from 0 back to 5. I’ve wondered whether it’s just the whole motor and shaft moving a bit vs the stationary top burr carrier, and consequently whether it’s a bad idea to have mine on a 10deg tilt stand…

            I’ll have to take some time to digest the rest of what you wrote. But perhaps I should just not worry about it and accept that the Eureka will produce a “traditional profile” of espresso with some fines and an overall bigger emphasis on body and chocolateyness as opposed to clarity…

              hthec The entire motor and shaft moves.

              http://kofemat.com.ua/useruploads/coffee-grinders-eureka_201309161154_lf.pdf

              you can see the parts, but spookily the description of them is missing (almost like they don’t want to say.

              A rod with a spring at the bottom (sometimes other places) and a thread that the adjustment knob turns, pushes up and down on a lever at the bottom of the grinder. The end of this lever pivots and presses against the motor to raise and lower it…thus changing the height of the bottom burr carrier, which s attached to the motor shaft.

              Hi @DavecUK, I’m aware the Eureka line does adjustments by moving the whole motor and the rotating bottom burr up and down. I was wondering whether the irregular (vs constant) sound I’m hearing at touch and interpreting as misalignment is due to the whole motor and shaft assembly shifting radially while spinning. And consequently whether the tilt I added to it is making things worse by shifting the axis of rotation to no longer be vertical

                hthec It’s difficult to know, I’m not sure if the motor slides up a couple of rails, or whether it’s simply bolted to the lever. One assumes the inclination shouldn’t put it out of alignment as, that exactly what they have done themselves to try and reduce retention.

                If you get to that touch point and tile the grinder vs vertical, does the sound change at all?

                No rails in the chassis, at least that I can see when I clean it.

                I just tried and when moving it from vertical to forward tilted back to vertical, there is no change in the rhythmic chrr sound. What I do notice is that especially when vertical the whole grinder dances a bit on the counter, making me think the weight distribution about the rotating shaft is not perfectly balanced or not centred

                  hthec What I do notice is that especially when vertical the whole grinder dances a bit on the counter, making me think the weight distribution about the rotating shaft is not perfectly balanced or not centred

                  I’m surprised, but it it may be more of a vibration issue. The real problem is grinder alignment is actually much more complicated than many people realise..

                    DavecUK I’d be interested in hearing more too.

                    Conventional forum/YouTube wisdom seems to be - do the marker test and shim with folded tin foil.