Grind setting conversion
1Zpresso J-Ultra vs Kinu M47 Classic
Two hand grinders cross-shopped at the same money. The J-Ultra counts 500 clicks; the M47 Classic counts 100 clicks.
| J-Ultra | M47 Classic | |
|---|---|---|
| Brand | 1Zpresso | Kinu |
| Scale | Clicks | Clicks |
| Dial range | 0 clicks – 500 clicks | 0 clicks – 100 clicks |
| Burrs | Conical | Conical |
| Espresso → filter | 150 clicks | 35 clicks |
| Filter → coarse | 276 clicks | 40 clicks |
The same number means different things
Both grinders use a clicks, which makes it tempting to copy a number straight across. Setting 50 clicks sits at grind index 0 on the J-Ultra but 47 on the M47 Classic — 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 | M47 Classic |
|---|---|
| 74 clicks | 10 clicks |
| 164 clicks | 17 clicks |
| 210 clicks | 24 clicks |
| 217 clicks | 31 clicks |
| 220 clicks | 39 clicks |
| 227 clicks | 46 clicks |
| 262 clicks | 52 clicks |
| 318 clicks | 57 clicks |
| 374 clicks | 62 clicks |
| 413 clicks | 67 clicks |
| 443 clicks | 73 clicks |
| 471 clicks | 79 clicks |
| 500 clicks | 85 clicks |
| M47 Classic | J-Ultra |
|---|---|
| 10 clicks | 74 clicks |
| 17 clicks | 164 clicks |
| 24 clicks | 210 clicks |
| 31 clicks | 217 clicks |
| 39 clicks | 220 clicks |
| 46 clicks | 227 clicks |
| 52 clicks | 262 clicks |
| 57 clicks | 318 clicks |
| 62 clicks | 374 clicks |
| 67 clicks | 413 clicks |
| 73 clicks | 443 clicks |
| 79 clicks | 471 clicks |
| 85 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 | M47 Classic |
|---|---|---|
| Espresso | 127 clicks | 14 clicks |
| Moka pot | 208 clicks | 22 clicks |
| AeroPress (short steep) | 217 clicks | 31 clicks |
| Pour over — V60 / cone | 222 clicks | 43 clicks |
| Pour over — flat bottom | 237 clicks | 49 clicks |
| Drip / batch brew | 262 clicks | 52 clicks |
| Chemex | 315 clicks | 57 clicks |
| French press | 400 clicks | 65 clicks |
| Cold brew | 459 clicks | 77 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
Kinu M47 Classic
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 M47 Classic
A heavy, precision-built hand grinder with stepless adjustment and genuine espresso capability. The lack of detents means repeatability depends on your own reference marks — the settings here are targets rather than clicks.
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-Ultra and the Kinu M47 Classic, side by side in your inbox.
One email with both charts. Nothing else unless you ask.
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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