Grind setting conversion
1Zpresso J-Max vs 1Zpresso J-Ultra
Espresso density against a wider all-round band.
| J-Max | J-Ultra | |
|---|---|---|
| Brand | 1Zpresso | 1Zpresso |
| Scale | Clicks | Clicks |
| Dial range | 0 clicks – 200 clicks | 0 clicks – 200 clicks |
| Burrs | Conical | Conical |
| Espresso → filter | 60 clicks | 60 clicks |
| Filter → coarse | 70 clicks | 70 clicks |
The same number means different things
Both grinders use a clicks, which makes it tempting to copy a number straight across. Setting 100 clicks sits at grind index 68.2 on the J-Max but 68.2 on the J-Ultra — close, but worth checking.
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.
| J-Max | J-Ultra |
|---|---|
| 10 clicks | 10 clicks |
| 21 clicks | 21 clicks |
| 33 clicks | 33 clicks |
| 46 clicks | 46 clicks |
| 60 clicks | 60 clicks |
| 72 clicks | 72 clicks |
| 82 clicks | 82 clicks |
| 90 clicks | 90 clicks |
| 98 clicks | 98 clicks |
| 108 clicks | 108 clicks |
| 119 clicks | 119 clicks |
| 129 clicks | 129 clicks |
| 140 clicks | 140 clicks |
| J-Ultra | J-Max |
|---|---|
| 10 clicks | 10 clicks |
| 21 clicks | 21 clicks |
| 33 clicks | 33 clicks |
| 46 clicks | 46 clicks |
| 60 clicks | 60 clicks |
| 72 clicks | 72 clicks |
| 82 clicks | 82 clicks |
| 90 clicks | 90 clicks |
| 98 clicks | 98 clicks |
| 108 clicks | 108 clicks |
| 119 clicks | 119 clicks |
| 129 clicks | 129 clicks |
| 140 clicks | 140 clicks |
Side by side, by brew method
Where each grinder lands for the same brew, worked out from its own dial curve.
| Method | J-Max | J-Ultra |
|---|---|---|
| Espresso | 17 clicks | 17 clicks |
| Moka pot | 30 clicks | 30 clicks |
| AeroPress (short steep) | 46 clicks | 46 clicks |
| Pour over — V60 / cone | 67 clicks | 67 clicks |
| Pour over — flat bottom | 76 clicks | 76 clicks |
| Drip / batch brew | 82 clicks | 82 clicks |
| Chemex | 90 clicks | 90 clicks |
| French press | 104 clicks | 104 clicks |
| Cold brew | 125 clicks | 125 clicks |
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.
1Zpresso J-Max
1Zpresso J-Ultra
Dialing in the J-Max
The J-Max trades coarse range for espresso resolution, and the click density near the fine end is the whole point of the grinder. If you are using it for pour over you are working in the middle of its range and will find it forgiving; if you are pulling shots, expect meaningful taste changes from two or three clicks. It will reach French press, but it is not what you bought it for.
Dialing in the J-Ultra
The J-Ultra widens the useful band relative to the J-Max, trading a little espresso resolution for genuinely usable filter and French press. If you want one hand grinder for everything, this is the one in the range that tries hardest.
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 →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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