Grind setting conversion
Eureka Atom 75 vs Eureka Mignon Specialita
Two Eureka models whose numbers do not mean the same thing. The Mignon Specialita turns 0–24 rotations; the Atom 75 turns 0–30 rotations.
| Atom 75 | Mignon Specialita | |
|---|---|---|
| Brand | Eureka | Eureka |
| Scale | Rotations | Rotations |
| Dial range | 0.0 rotations – 30.0 rotations | 0.0 rotations – 24.0 rotations |
| Burrs | Flat | Flat |
| Espresso → filter | 7.5 rotations | 6.5 rotations |
| Filter → coarse | 20 rotations | 7 rotations |
The same number means different things
Both grinders use a rotations, which makes it tempting to copy a number straight across. Setting 12.0 rotations sits at grind index 48.2 on the Atom 75 but 74.3 on the Mignon Specialita — far enough apart to change the cup.
Converting a setting
If a recipe quotes a setting for one of these grinders, read across for the equivalent on the other. Rows are spaced evenly by grind size, not by dial number — on a conical burr those are not the same thing.
| Atom 75 | Mignon Specialita |
|---|---|
| 1.5 rotations | 1.5 rotations |
| 4.6 rotations | 2.8 rotations |
| 7.1 rotations | 4.2 rotations |
| 7.8 rotations | 5.5 rotations |
| 8.5 rotations | 6.9 rotations |
| 9.6 rotations | 8.2 rotations |
| 12.7 rotations | 9.2 rotations |
| 15.7 rotations | 10.1 rotations |
| 18.8 rotations | 11.1 rotations |
| 21.5 rotations | 12.1 rotations |
| 24.0 rotations | 13.1 rotations |
| 26.5 rotations | 14.0 rotations |
| 29.0 rotations | 15.0 rotations |
| Mignon Specialita | Atom 75 |
|---|---|
| 1.5 rotations | 1.5 rotations |
| 2.8 rotations | 4.6 rotations |
| 4.2 rotations | 7.1 rotations |
| 5.5 rotations | 7.8 rotations |
| 6.9 rotations | 8.5 rotations |
| 8.2 rotations | 9.6 rotations |
| 9.2 rotations | 12.7 rotations |
| 10.1 rotations | 15.7 rotations |
| 11.1 rotations | 18.8 rotations |
| 12.1 rotations | 21.5 rotations |
| 13.1 rotations | 24.0 rotations |
| 14.0 rotations | 26.5 rotations |
| 15.0 rotations | 29.0 rotations |
Side by side, by brew method
Where each grinder lands for the same brew, worked out from its own dial curve.
| Method | Atom 75 | Mignon Specialita |
|---|---|---|
| Espresso | 3.3 rotations | 2.3 rotations |
| Moka pot | 7.0 rotations | 3.9 rotations |
| AeroPress (short steep) | 7.8 rotations | 5.5 rotations |
| Pour over — V60 / cone | 8.8 rotations | 7.7 rotations |
| Pour over — flat bottom | 10.8 rotations | 8.6 rotations |
| Drip / batch brew | 12.7 rotations | 9.2 rotations |
| Chemex | 15.6 rotations | 10.1 rotations |
| French press | 20.6 rotations | 11.7 rotations |
| Cold brew | 25.4 rotations | 13.6 rotations |
The shape of each dial
Where the connectors bunch, that grinder’s dial is compressed and single steps count for more. Comparing the two shapes tells you which gives finer control, and where.
Eureka Atom 75
Eureka Mignon Specialita
Dialing in the Atom 75
A large flat-burr espresso grinder aimed at light commercial and serious home use. Fast, and stepless in the Eureka manner — the settings here are positions to land near rather than detents to count.
Dialing in the Mignon Specialita
A stepless espresso grinder first, everything else second. The micrometric adjustment means small movements do real work at the fine end, and the settings below should be read as starting positions rather than detents. It will grind for filter and does it competently, but you are working at the far edge of a dial designed for a different job.
Own a different grinder?
Convert between any two of 78 models
The converter runs the same maths for any pair in the catalog.
Open the grind converter →Send me both charts
Every setting for the Eureka Atom 75 and the Eureka Mignon Specialita, side by side in your inbox.
One email with both charts. Nothing else unless you ask.
Switching grinders mid-bag?
Log a brew, say how it tasted, and BrewMark tells you which way to move — in whichever grinder’s numbers you are actually using. Free on iOS.
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