Which to buy · Every setting
1Zpresso JX-Pro vs Hario Mini Mill Slim+
Two hand grinders cross-shopped at the same money. The JX-Pro counts 200 clicks; the Mini Mill Slim+ counts 15 clicks.
Which to buy
Choose the
JX-Pro if you…
- pull espresso as well as pour over — 1Zpresso rates it for both
- want clicks you can count: 40 a turn, 12.5 microns each
- grind 30–35 g at a time
Choose the
Mini Mill Slim+ if you…
- are new to grinding — Hario aims it at beginners
- grind up to 2 cups at a time — 24 g
- want ceramic burrs, inner and outer
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 out of stock and unavailable, while its J series page still lists the JX-Pro.
Sources: 1Zpresso — J series · 1Zpresso — JX-Pro (archived) · Hario USA — Mini-Slim+ Ceramic Coffee Mill · Hario UK — Mini Mill PLUS
| JX-Pro | Mini Mill Slim+ | |
|---|---|---|
| Brand | 1Zpresso | Hario |
| Scale | Clicks | Clicks |
| Dial range | 0 clicks – 200 clicks | 0 clicks – 15 clicks |
| Burrs | Conical | Conical |
| Espresso → filter | 108.4 clicks | 6 clicks |
| Filter → coarse | 51.8 clicks | 6 clicks |
The same number means different things
Both grinders use a clicks, which makes it tempting to copy a number straight across. Setting 8 clicks sits at grind index 0 on the JX-Pro but 40 on the Mini Mill Slim+ — 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.
| JX-Pro | Mini Mill Slim+ |
|---|---|
| 40 clicks | 2 clicks |
| 73 clicks | 3 clicks |
| 101 clicks | 4 clicks |
| 121 clicks | 6 clicks |
| 137 clicks | 7 clicks |
| 151 clicks | 8 clicks |
| 163 clicks | 9 clicks |
| 173 clicks | 10 clicks |
| 181 clicks | 11 clicks |
| 188 clicks | 12 clicks |
| 192 clicks | 12 clicks |
| 196 clicks | 13 clicks |
| 200 clicks | 14 clicks |
| Mini Mill Slim+ | JX-Pro |
|---|---|
| 2 clicks | 40 clicks |
| 3 clicks | 73 clicks |
| 4 clicks | 101 clicks |
| 6 clicks | 121 clicks |
| 7 clicks | 137 clicks |
| 8 clicks | 151 clicks |
| 9 clicks | 163 clicks |
| 10 clicks | 173 clicks |
| 11 clicks | 181 clicks |
| 12 clicks | 188 clicks |
| 13 clicks | 196 clicks |
| 14 clicks | 200 clicks |
Side by side, by brew method
Where each grinder lands for the same brew, worked out from its own dial curve.
| Method | JX-Pro | Mini Mill Slim+ |
|---|---|---|
| Espresso | 59 clicks | 3 clicks |
| Moka pot | 96 clicks | 4 clicks |
| AeroPress (short steep) | 120 clicks | 6 clicks |
| Pour over — V60 / cone | 145 clicks | 8 clicks |
| Siphon | 151 clicks | 8 clicks |
| Pour over — flat bottom | 156 clicks | 9 clicks |
| Steep and release — Clever / Switch | 160 clicks | 9 clicks |
| Drip / batch brew | 120 clicks | 9 clicks |
| Cupping | 165 clicks | 9 clicks |
| Chemex | 172 clicks | 10 clicks |
| French press | 186 clicks | 11 clicks |
| Cold brew | 194 clicks | 13 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 JX-Pro
Hario Mini Mill Slim+
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.
Dialing in the Mini Mill Slim+
Small, cheap and slow, with a stepped adjustment that is coarse in both senses. Best treated as a filter and immersion grinder, where its limited resolution matters least.