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Our Verdict
The 1Zpresso JX-Pro S is one of the best all-rounder hand grinders available, with large 48mm burrs that grind fast and a 12.5-micron click system that lets you dial in espresso with surgical precision. If you brew both espresso and filter, this is the hand grinder to beat under $200.
Pros
- + 48mm burrs grind noticeably faster than smaller-burr competitors
- + 12.5 micron per click adjustment provides exceptional espresso dial-in precision
- + Foldable handle and 570-gram weight strike a good balance between portability and stability
Cons
- – The price gap over the JX-Pro is hard to justify for filter-only brewers
- – Metal body conducts cold in winter, making bare-hand grinding less comfortable
Our Take
The 1Zpresso JX-Pro S is the refined evolution of what was already one of the most recommended hand grinders in the specialty coffee community. The original JX-Pro established 1Zpresso’s reputation for delivering genuine espresso-capable grinding at a fraction of electric grinder prices, and the S revision tightens every aspect of that formula. The 48mm stainless steel conical burrs are the largest in 1Zpresso’s mid-range lineup, and they translate directly into grinding speed: 18 grams of medium-roast beans at espresso fineness takes roughly 20 to 25 seconds, which is meaningfully faster than 38mm competitors. The external adjustment system clicks at 12.5 microns per step with 40 clicks per full rotation, giving you over 200 discrete settings across the full range. For espresso, this means you can make micro-adjustments that translate to real differences in shot time without overshooting.
Build quality is a 1Zpresso hallmark, and the JX-Pro S continues that tradition. The aluminum and stainless steel body weighs 570 grams, which sits in a comfortable middle ground between ultralight travel grinders and heavy desktop units. The foldable handle is a welcome addition, collapsing flush against the body for storage or transport. Internal bearings hold the burr shaft with minimal axial play, and there is no perceptible wobble even at the finest settings. The catch cup threads on securely and holds 35 grams, enough for a double espresso or a single pour-over dose. The grind consistency is excellent across the range, producing clean, well-defined particles for espresso and a uniform bed for V60 or Kalita Wave brewing.
The JX-Pro S’s main limitation is value positioning. At $160, it costs roughly $50 more than the original JX-Pro, and the improvements, while real, are incremental rather than transformative. Filter-only brewers who do not need espresso-level precision would be well served by the Timemore Chestnut C3 at a lower price point. And for dedicated espresso enthusiasts willing to spend more, the Comandante C40 MK4 and 1Zpresso K-Max offer marginally better cup clarity at the cost of speed and portability. But as an all-rounder that handles every brew method from Turkish to French press with speed and precision, the JX-Pro S is difficult to fault. It is the hand grinder equivalent of a well-balanced chef’s knife: not the most specialized tool, but the one you reach for every day.
Specifications
| Spec | Value |
|---|---|
| MSRP | $160 |
| Burr Type | Stainless Steel Conical |
| Burr Size Mm | 48 |
| Adjustment Type | Stepped (External) |
| Capacity | 35g |
| Weight Grams | 570 |
| Clicks Per Rotation | 40 |
| Micron Per Click | 12.5 |
Frequently Asked Questions
What is the difference between the 1Zpresso JX-Pro and JX-Pro S?
The JX-Pro S upgrades to a foldable handle, refined external adjustment with 12.5 micron per click resolution, and improved bearing alignment. The burr geometry is also slightly updated for better uniformity, especially at espresso settings.
Can the 1Zpresso JX-Pro S grind fine enough for espresso?
Yes, the JX-Pro S excels at espresso grinding. The 12.5 micron per click adjustment gives you over 200 total settings, providing more than enough resolution to dial in even light-roast espresso.
How long does it take to grind with the 1Zpresso JX-Pro S?
Approximately 20 to 25 seconds for 18 grams at espresso fineness, and around 15 to 20 seconds for 20 grams at pour-over settings. The large 48mm burrs make it one of the fastest hand grinders available.
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