Grind setting conversion
1Zpresso J-Max vs 1Zpresso JX-Pro
Filter range against espresso resolution, same external adjustment.
| J-Max | JX-Pro | |
|---|---|---|
| Brand | 1Zpresso | 1Zpresso |
| Scale | Clicks | Clicks |
| Dial range | 0 clicks – 200 clicks | 0 clicks – 200 clicks |
| Burrs | Conical | Conical |
| Espresso → filter | 60 clicks | 63 clicks |
| Filter → coarse | 70 clicks | 75 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 61.4 on the JX-Pro — 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.
| J-Max | JX-Pro |
|---|---|
| 10 clicks | 12 clicks |
| 21 clicks | 24 clicks |
| 33 clicks | 37 clicks |
| 46 clicks | 51 clicks |
| 60 clicks | 65 clicks |
| 72 clicks | 77 clicks |
| 82 clicks | 88 clicks |
| 90 clicks | 97 clicks |
| 98 clicks | 106 clicks |
| 108 clicks | 116 clicks |
| 119 clicks | 127 clicks |
| 129 clicks | 139 clicks |
| 140 clicks | 150 clicks |
| JX-Pro | J-Max |
|---|---|
| 12 clicks | 10 clicks |
| 24 clicks | 21 clicks |
| 37 clicks | 33 clicks |
| 51 clicks | 46 clicks |
| 65 clicks | 60 clicks |
| 77 clicks | 72 clicks |
| 88 clicks | 82 clicks |
| 97 clicks | 90 clicks |
| 106 clicks | 98 clicks |
| 116 clicks | 108 clicks |
| 127 clicks | 119 clicks |
| 139 clicks | 129 clicks |
| 150 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 | JX-Pro |
|---|---|---|
| Espresso | 17 clicks | 19 clicks |
| Moka pot | 30 clicks | 34 clicks |
| AeroPress (short steep) | 46 clicks | 51 clicks |
| Pour over — V60 / cone | 67 clicks | 72 clicks |
| Pour over — flat bottom | 76 clicks | 82 clicks |
| Drip / batch brew | 82 clicks | 88 clicks |
| Chemex | 90 clicks | 96 clicks |
| French press | 104 clicks | 113 clicks |
| Cold brew | 125 clicks | 134 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 JX-Pro
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 JX-Pro
External adjustment makes this the easiest hand grinder to actually dial, because you can count clicks without disassembling anything. Its filter range is generous, which is a mixed blessing — small click changes do less than you expect at the coarse end and more than you expect near espresso. Move in larger jumps for French press, single clicks for anything under filter.
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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