Grind setting conversion
1Zpresso J-Max vs Timemore C3
Two hand grinders cross-shopped at the same money. The J-Max counts 450 clicks; the C3 counts 36 clicks.
| J-Max | C3 | |
|---|---|---|
| Brand | 1Zpresso | Timemore |
| Scale | Clicks | Clicks |
| Dial range | 0 clicks – 450 clicks | 0 clicks – 36 clicks |
| Burrs | Conical | Conical |
| Espresso → filter | 138 clicks | 7 clicks |
| Filter → coarse | 242 clicks | 11 clicks |
The same number means different things
Both grinders use a clicks, which makes it tempting to copy a number straight across. Setting 18 clicks sits at grind index 0 on the J-Max but 53.2 on the C3 — 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 | C3 |
|---|---|
| 70 clicks | 8 clicks |
| 152 clicks | 10 clicks |
| 195 clicks | 12 clicks |
| 202 clicks | 13 clicks |
| 204 clicks | 14 clicks |
| 210 clicks | 15 clicks |
| 241 clicks | 17 clicks |
| 291 clicks | 19 clicks |
| 340 clicks | 21 clicks |
| 374 clicks | 23 clicks |
| 401 clicks | 24 clicks |
| 425 clicks | 25 clicks |
| 450 clicks | 26 clicks |
| C3 | J-Max |
|---|---|
| 8 clicks | 70 clicks |
| 10 clicks | 152 clicks |
| 12 clicks | 195 clicks |
| 13 clicks | 202 clicks |
| 14 clicks | 204 clicks |
| 15 clicks | 210 clicks |
| 17 clicks | 241 clicks |
| 19 clicks | 291 clicks |
| 21 clicks | 340 clicks |
| 23 clicks | 374 clicks |
| 24 clicks | 401 clicks |
| 25 clicks | 425 clicks |
| 26 clicks | 450 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 | C3 |
|---|---|---|
| Espresso | 118 clicks | 9 clicks |
| Moka pot | 193 clicks | 12 clicks |
| AeroPress (short steep) | 202 clicks | 13 clicks |
| Pour over — V60 / cone | 206 clicks | 15 clicks |
| Pour over — flat bottom | 219 clicks | 16 clicks |
| Drip / batch brew | 241 clicks | 17 clicks |
| Chemex | 289 clicks | 19 clicks |
| French press | 363 clicks | 22 clicks |
| Cold brew | 415 clicks | 25 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
Timemore C3
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 C3
The best-value hand grinder in circulation and the one most likely to be someone's first. Its range is usable across filter and immersion, with espresso possible but genuinely tedious. The C3 benefits more than most grinders from a few seconds of settling before you judge a shot or a pour — its distribution tightens noticeably once the burrs are warm.
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 →Send me both charts
Every setting for the 1Zpresso J-Max and the Timemore C3, side by side in your inbox.
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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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