1Zpresso X-Ultra vs J-Ultra: Filter Coffee or Espresso?
A model choice based on brew method and adjustment scale, researched from 1Zpresso product pages, the 1Zpresso user manuals, and published grind charts.
Quick Answer
Choose the 1Zpresso J-Ultra if espresso is your main drink: the J-Ultra moves the burr 8 microns per click and 1Zpresso markets its burr as optimized for espresso. Choose the 1Zpresso X-Ultra if you mostly brew filter coffee and pull espresso occasionally: the X-Ultra moves 12.5 microns per click, is lighter at 590 g, and reaches V60 settings with less dial travel.
Already own an X-Ultra? Settings by brew method are in the 1Zpresso X-Ultra grind settings and click guide. J-Ultra owners can use the 1Zpresso J-Ultra espresso settings guide.
1Zpresso X-Ultra vs J-Ultra Spec Comparison
Figures come from the X-Ultra product page, the J-Ultra product page, the X-Ultra manual, and the J-Ultra manual.
| Spec | 1Zpresso X-Ultra | 1Zpresso J-Ultra |
|---|---|---|
| Burr movement per click | 12.5 µm | 8 µm |
| Clicks per rotation | 60 | 100 |
| Burr movement per rotation | 750 µm | 800 µm |
| Burr (maker's description) | Small heptagonal burr | Coated burr optimized for espresso |
| Grounds capacity | 25–30 g | 35–40 g |
| Weight | 590 g | 700 g |
| Dimensions | 17 × 18.5 × 5.2 cm | 19 × 18.5 × 5.5 cm |
| Positioned by 1Zpresso for | Pour-over and espresso | Espresso, fine to ultra-fine |
Burr movement per rotation multiplies each manual's per-click figure by clicks per rotation. Burr movement is a dial scale, not a measured particle size.
Why the 1Zpresso J-Ultra Adjustment Scale Suits Espresso
Espresso reacts to very small grind changes, so the size of each click matters. The J-Ultra manual states 8 microns of burr movement per click and 100 clicks per rotation, against 12.5 microns and 60 clicks on the X-Ultra.
Published espresso ranges show the practical difference. Honest Coffee Guide's J-Ultra chart spans 80 clicks for espresso, while its X-Ultra chart spans 39 clicks. The J-Ultra therefore offers about twice as many stops to land a shot's flow rate and taste.
1Zpresso describes the J-Ultra burr as a coated burr optimized for espresso, for fine to ultra-fine grinds.
Why the 1Zpresso X-Ultra Suits Filter Coffee With Occasional Espresso
1Zpresso positions the X-Ultra for both pour-over and espresso. The larger 12.5-micron X-Ultra click covers filter ranges in fewer turns, which matters if you switch methods during the week.
| Brew method | X-Ultra range | J-Ultra range |
|---|---|---|
| Espresso | 0.3.6 – 1.1.5 (36–75 clicks) | 0.7.4 – 1.5.4 (74–154 clicks) |
| V60 | 1.2.0 – 2.1.8 (80–138 clicks) | 1.6.3 – 2.8.4 (163–284 clicks) |
Ranges from Honest Coffee Guide (X-Ultra, J-Ultra), written as rotation.number.click from zero.
Moving from a mid-range espresso setting to a mid-range V60 setting is about 55 clicks on the X-Ultra versus roughly 110 clicks on the J-Ultra, based on those published ranges.
1Zpresso X-Ultra vs J-Ultra Capacity, Weight, and Size
- The J-Ultra holds 35–40 g of grounds; the X-Ultra holds 25–30 g (J-Ultra, X-Ultra). A large pour-over batch fits the J-Ultra in one load.
- The X-Ultra weighs 590 g and the J-Ultra 700 g, so the X-Ultra is the lighter travel grinder.
- Both grinders share a foldable handle, a magnetic catch cup, and tool-free disassembly, per the 1Zpresso product pages.
- Both manuals say not to clean the grinder with water. The X-Ultra manual also says to avoid wiping it with solvents other than water and alcohol, and the J-Ultra manual recommends a brush and blower.
Which 1Zpresso Grinder to Choose by Brew Routine
- Espresso daily, filter rarely: the 1Zpresso J-Ultra, for its 8-micron click and espresso-optimized burr.
- Filter daily, espresso sometimes: the 1Zpresso X-Ultra, for shorter dial travel between methods and lower weight.
- Filter only: the X-Ultra covers every pour-over range; neither Ultra's espresso resolution is needed.
- Large batches or two cups at once: the J-Ultra's 35–40 g capacity avoids a second load.
Other 1Zpresso scales: JX-Pro grind settings · K-Max grind settings.
1Zpresso X-Ultra vs J-Ultra FAQ
Is the 1Zpresso X-Ultra or J-Ultra better for espresso?
The 1Zpresso J-Ultra is the better espresso grinder of the two. The J-Ultra moves the burr 8 microns per click versus 12.5 microns on the X-Ultra, and 1Zpresso markets the J-Ultra burr as optimized for espresso, so the J-Ultra gives roughly twice as many click stops across the espresso range.
Can the 1Zpresso X-Ultra make espresso?
Yes. 1Zpresso positions the X-Ultra for both pour-over and espresso, and published X-Ultra espresso ranges run from about 0.3.6 to 1.1.5, or 36 to 75 clicks from zero. Each X-Ultra click is a larger 12.5-micron step, so espresso dialing is coarser-grained than on the J-Ultra.
Is the 1Zpresso J-Ultra good for pour-over?
The 1Zpresso J-Ultra can grind for pour-over, but published J-Ultra V60 settings sit around 1.6.3 to 2.8.4, or 163 to 284 clicks from zero. That means more turning of the J-Ultra dial when switching between espresso and filter than on the X-Ultra.
Do X-Ultra click settings work on the J-Ultra?
No. The X-Ultra uses 60 clicks per rotation at 12.5 microns each, while the J-Ultra uses 100 clicks per rotation at 8 microns each, so a click count from one grinder does not transfer to the other.