1Zpresso · Grinder · EARLIER MODEL
JX
The original JX manual platform for filter-first home brewing.

Product image: 1Zpresso ↗
Published specifications.
- Power
- Hand-powered
- Burr
- 48 mm conical
- Adjustment
- Internal · 30 clicks / rotation
- Burr movement / click
- 25 µm
- Brew applications
- Pour-over · AeroPress · French press
Check the exact model and included parts with the linked manufacturer. Regional versions and replacement burrs can change the specification.
What changes in daily use.
Why shortlist it
- Hand-powered operation for a compact, unplugged setup.
- Internal · 30 clicks / rotation adjustment.
- Published adjustment movement: 25 µm.
The trade-off
JX and JX-Pro use different adjustment mechanisms; do not copy rotation counts.
Before you buy or brew
- JX and JX-Pro use different adjustment mechanisms; do not copy rotation counts.
- Use the exact model and burr revision when reading a grind chart.
- Check the dose fits the chamber and that hand grinding suits your routine.
Grind settings by brew method.
Use these as starting references for this exact model. Settings from a maker’s recipe retain that recipe’s dose and batch context.
| Brew method | Starting reference |
|---|---|
| Espresso | 0.8–1.1 rotationsMaker reference ↗ |
| Pour-over | 2.2–3.0 rotationsMaker reference ↗ |
| AeroPress | 1.6–2.0 rotationsMaker reference ↗ |
| Chemex | No verified setting for this model |
| Moka pot | 1.6–2.0 rotationsMaker reference ↗ |
| French press | 2.8–3.4 rotationsMaker reference ↗ |
| Cold brew | No verified setting for this model |
| Drip / batch | 1.6–2.0 rotationsMaker reference ↗ |
| Siphon | 2.2–3.0 rotationsMaker reference ↗ |
| Turkish | 0.5–0.8 rotationsMaker reference ↗ |
| Cold drip | No verified setting for this model |
| Percolator | No verified setting for this model |
| Cuccumella | No verified setting for this model |
| Kaapi filter | No verified setting for this model |
| Jebena | No verified setting for this model |
| Chorreador | No verified setting for this model |
| Dallah | No verified setting for this model |
| Vietnamese phin | No verified setting for this model |
“No verified setting” does not by itself mean a method is impossible. It means we have not established a published value for the exact model. Do not interpret burr movement in microns as coffee particle size.