Which to buy · Every setting
1Zpresso JX-Pro vs Timemore Chestnut S3
Two hand grinders cross-shopped at the same money. The JX-Pro counts 200 clicks; the Chestnut S3 counts 90 clicks.
Which to buy
Choose the
JX-Pro if you…
- want to adjust from the top: 40 clicks a turn, 12.5 microns each
- grind 30–35 g at a time
- brew pour over as well as espresso — 1Zpresso rates it for both
Choose the
Chestnut S3 if you…
- want a spring-assisted handle that folds against the grinder
- want Timemore's S2C890 hardened steel burrs — it lists espresso at 1–15 clicks
- want a full-metal unibody
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) · Timemore — Chestnut S3
| JX-Pro | Chestnut S3 | |
|---|---|---|
| Brand | 1Zpresso | Timemore |
| Scale | Clicks | Clicks |
| Dial range | 0 clicks – 200 clicks | 0 clicks – 90 clicks |
| Burrs | Conical | Conical |
| Espresso → filter | 108.4 clicks | 54 clicks |
| Filter → coarse | 51.8 clicks | 30 clicks |
The same number means different things
Both grinders use a clicks, which makes it tempting to copy a number straight across. Setting 45 clicks sits at grind index 1.4 on the JX-Pro but 30.9 on the Chestnut S3 — 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 | Chestnut S3 |
|---|---|
| 40 clicks | 6 clicks |
| 73 clicks | 11 clicks |
| 101 clicks | 19 clicks |
| 121 clicks | 34 clicks |
| 137 clicks | 50 clicks |
| 151 clicks | 62 clicks |
| 163 clicks | 71 clicks |
| 173 clicks | 77 clicks |
| 181 clicks | 82 clicks |
| 188 clicks | 86 clicks |
| 192 clicks | 88 clicks |
| 196 clicks | 89 clicks |
| 200 clicks | 90 clicks |
| Chestnut S3 | JX-Pro |
|---|---|
| 6 clicks | 40 clicks |
| 11 clicks | 73 clicks |
| 19 clicks | 101 clicks |
| 34 clicks | 121 clicks |
| 50 clicks | 137 clicks |
| 62 clicks | 151 clicks |
| 71 clicks | 163 clicks |
| 77 clicks | 173 clicks |
| 82 clicks | 181 clicks |
| 86 clicks | 188 clicks |
| 88 clicks | 192 clicks |
| 89 clicks | 196 clicks |
| 90 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 | Chestnut S3 |
|---|---|---|
| Espresso | 59 clicks | 9 clicks |
| Moka pot | 96 clicks | 17 clicks |
| AeroPress (short steep) | 120 clicks | 34 clicks |
| Pour over — V60 / cone | 145 clicks | 57 clicks |
| Siphon | 151 clicks | 62 clicks |
| Pour over — flat bottom | 156 clicks | 66 clicks |
| Steep and release — Clever / Switch | 160 clicks | 69 clicks |
| Drip / batch brew | 120 clicks | 71 clicks |
| Cupping | 165 clicks | 73 clicks |
| Chemex | 172 clicks | 77 clicks |
| French press | 186 clicks | 85 clicks |
| Cold brew | 194 clicks | 89 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
Timemore Chestnut S3
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 Chestnut S3
Sits above the C-series with better burrs and a more solid feel. Its useful range genuinely extends further toward espresso than the C3, though a dedicated espresso grinder will still out-resolve it.