Which to buy · Every setting
1Zpresso J-Ultra vs 1Zpresso JX-Pro
Two 1Zpresso models whose numbers do not mean the same thing. The JX-Pro counts 200 clicks; the J-Ultra counts 500 clicks.
Which to buy
Choose the
J-Ultra if you…
- pull mostly espresso — 1Zpresso optimises the J-Ultra for it
- want 100 clicks a turn, 8 microns each
- want a foldable handle and a magnetic catch cup
Choose the
JX-Pro if you…
- brew pour over as well as espresso — 1Zpresso rates it for both
- want a top dial: 40 clicks a turn, 12.5 microns each
Shop links are affiliate links: BrewMark earns a commission if you buy through one, at no extra cost to you. The verdicts were written without regard to it.
1Zpresso's JX-Pro page now shows the JX-Pro S as "currently out of stock and unavailable", while its J series page still lists the JX-Pro with a buy link.
Sources: 1Zpresso — J series · 1Zpresso — J-Ultra · 1Zpresso — J-Ultra manual · 1Zpresso — J-Ultra product page
| J-Ultra | JX-Pro | |
|---|---|---|
| Brand | 1Zpresso | 1Zpresso |
| Scale | Clicks | Clicks |
| Dial range | 0 clicks – 500 clicks | 0 clicks – 200 clicks |
| Burrs | Conical | Conical |
| Espresso → filter | 199.8 clicks | 108.4 clicks |
| Filter → coarse | 205.2 clicks | 51.8 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 0.6 on the J-Ultra but 16.4 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-Ultra | JX-Pro |
|---|---|
| 95 clicks | 40 clicks |
| 169 clicks | 73 clicks |
| 227 clicks | 101 clicks |
| 257 clicks | 121 clicks |
| 276 clicks | 137 clicks |
| 301 clicks | 151 clicks |
| 334 clicks | 163 clicks |
| 369 clicks | 173 clicks |
| 403 clicks | 181 clicks |
| 431 clicks | 188 clicks |
| 455 clicks | 192 clicks |
| 477 clicks | 196 clicks |
| 500 clicks | 200 clicks |
| JX-Pro | J-Ultra |
|---|---|
| 40 clicks | 95 clicks |
| 73 clicks | 169 clicks |
| 101 clicks | 227 clicks |
| 121 clicks | 257 clicks |
| 137 clicks | 276 clicks |
| 151 clicks | 301 clicks |
| 163 clicks | 334 clicks |
| 173 clicks | 369 clicks |
| 181 clicks | 403 clicks |
| 188 clicks | 431 clicks |
| 192 clicks | 455 clicks |
| 196 clicks | 477 clicks |
| 200 clicks | 500 clicks |
Side by side, by brew method
Where each grinder lands for the same brew, worked out from its own dial curve.
| Method | J-Ultra | JX-Pro |
|---|---|---|
| Espresso | 139 clicks | 59 clicks |
| Moka pot | 218 clicks | 96 clicks |
| AeroPress (short steep) | 257 clicks | 120 clicks |
| Pour over — V60 / cone | 288 clicks | 145 clicks |
| Siphon | 302 clicks | 151 clicks |
| Pour over — flat bottom | 314 clicks | 156 clicks |
| Steep and release — Clever / Switch | 326 clicks | 160 clicks |
| Drip / batch brew | 270 clicks | 120 clicks |
| Cupping | 342 clicks | 165 clicks |
| Chemex | 368 clicks | 172 clicks |
| French press | 421 clicks | 186 clicks |
| Cold brew | 467 clicks | 194 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-Ultra
1Zpresso JX-Pro
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.
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.