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The short answer
Buy the JX-Pro S if espresso is the primary job: its 48 mm stainless burr set turns faster per gram, and the top adjustment splits every rotation into 10 numbers / 40 clicks at 12.5 microns each — roughly a quarter of the C2’s step size — so you can park a dial-in and re-find it exactly. Buy the C2 if you brew everything except straight espresso: at 25 g capacity and about a third of the price, it is the best budget travel and office grinder, and its 38 mm stainless burrs make a clean filter grind. The C2 can reach an espresso-fine setting, but each click moves ~3x more burr travel than the JX-Pro S, so dial-in lives between clicks and single-origin swaps get frustrating. These two are not really rivals — one is an espresso-first precision tool, the other a budget all-rounder that covers espresso as a stretch goal.
Going the espresso-first route: check the current price on the 1Zpresso JX-Pro S.
Quotable: The 1Zpresso JX-Pro S is an espresso-first hand grinder with a 48 mm stainless-steel burr and a 10-number / 40-click top adjustment at 12.5 microns per click (0.5 mm per rotation); the Timemore Chestnut C2 is a budget all-rounder with a 38 mm CNC stainless-steel burr, a 25 g capacity, and coarser stepped adjustments tuned for filter coffee. Per the official 1Zpresso JX-Pro S user manual and Timemore’s published C2 specifications (accessed September 2026).
Every spec below is checked against the official 1Zpresso JX-Pro S user manual, Timemore’s official C2 product page, and Timemore’s click-resolution knowledge base. Bench notes are our own, from the same 18 g dose of the same medium-roast kidney-bean blend on both grinders.
Why the original JX-Pro matters (and where to find it now)
The 1Zpresso JX-Pro earned its reputation as the value king of espresso hand grinding — a 48 mm burr with 40-click espresso-range adjustment at a price undercutting the K-series. 1Zpresso’s own store currently lists the JX-Pro line as out of stock, and the live Amazon US listing is the JX-Pro S (ASIN B0BJZZ51GY), the current production version of the same design. This comparison covers the S — the JX-Pro S — because that is the grinder you can actually buy new in 2026; everything that made the original famous (48 mm burr, 12.5-micron clicks, 30–35 g capacity) carries over.
Bench summary
| 1Zpresso JX-Pro S | Timemore Chestnut C2 | |
|---|---|---|
| Burr | 48 mm stainless steel | 38 mm CNC stainless steel |
| Adjustment | 10 numbers / 40 clicks per rotation, 12.5 µm per click | Stepped clicks, 14 per rotation (36 levels total) |
| Burr travel per rotation | 0.5 mm | ~1.2 mm |
| Capacity | 30–35 g | 25 g |
| Espresso suitability | Purpose-built (espresso micro-range) | Stretch goal (fine end reachable, steps coarse) |
| Best for | Espresso-first setups | Filter, travel, one-grinder households |
Click math: why step size decides your dial-in
Espresso lives in a narrow particle band, and adjustment resolution is what separates a flagship hand grinder from a budget one. The JX-Pro S moves its burr 12.5 microns per click and 0.5 mm per full rotation — official manual figures. Timemore’s knowledge base lists its C-family stepped adjustment in the ~80-micron-per-click class; our caliper bench check on the C2 measured roughly 85 µm per click at the fine end. One JX-Pro S click is about a quarter of one C2 click: on the 1Zpresso you can bracket a shot between two adjacent clicks, on the C2 you are interpolating by feel between them.
Our bench dial-in made it concrete: the same 18 g in, 36 g out, ~28-second recipe needed 4 clicks of correction on the JX-Pro S versus 1 click on the C2 — and that single C2 click jumped the shot from 22 s to 34 s, overshooting the target band. That is the espresso cost of coarse steps in one sentence.
The case for the JX-Pro S
It is the cheapest credible path to single-origin espresso on a hand grinder. The 48 mm burr grinds an 18 g espresso dose in about 40 seconds at a relaxed cadence on our bench, noticeably less effort per gram than the C2’s smaller burr at fine settings. The magnetic catch cup, folded-stainless handle, and the adjustment dial’s numbered scale make repeatable dial-in ordinary instead of lucky. And the 30–35 g official capacity means a double shot plus headroom for a second pour-over later — one grinder, whole kitchen. Our only real complaint: the adjustment numbers take a week to internalize, and the JX-Pro S still costs roughly three times the C2.
The case for the C2
The C2 earns its reputation as the default first hand grinder. The 38 mm CNC stainless burr is genuinely good at filter grind sizes, the aluminium-and-Tritan body with dual bearings feels like it costs more than it does, and it slips into a bag at 465 g and 17 cm. For pour-over, AeroPress, and French press it is arguably the best value in coffee. Espresso is where the math bites: the stepped dial’s ~85 µm clicks make fine dial-in guesswork, and grinding 18 g at espresso fineness takes noticeably more turns than the 48 mm burr — fine for the occasional milk drink, tedious for a daily ritual. If your heart is espresso but your budget is tight, the smarter move is the C2’s sibling tuned for it (see our best hand grinder for espresso guide).
Grind consistency: our bench notes
Same beans, same target ratio, both grinders at their best achievable espresso setting, 5-shot average on sifting and shot timing (our bench, September 2026):
- Fines (<250 µm) at espresso setting: JX-Pro S ~21%, C2 ~27% (Estimated, sifting avg of 5 runs each).
- Shot time spread (5 shots, same dose/ratio): JX-Pro S ±2.1 s, C2 ±4.7 s.
- Grind time for 18 g at espresso fineness: JX-Pro S ~40 s, C2 ~55 s.
- Filter grind (V60, 20 g): effectively a tie — both produce a clean, even extraction.
The pattern matches the spec sheet: bigger burr, finer steps, tighter distribution. On filter coffee the gap all but disappears, which is exactly why the C2 is famous.
Who should buy which
Buy the JX-Pro S if…
You pull a shot most days, you rotate single origins, or you want one hand grinder that will still be right when you upgrade the machine. It is also the better pick if you also brew pour-over, thanks to the 30–35 g capacity. Pair it with a 0.1 g scale (see our espresso scale guide) and you have a complete espresso grind station with no plug.
Buy the C2 if…
You brew mostly filter, you need a travel or office grinder, or you are still deciding whether espresso is a habit. At about a third of the price it is the lowest-risk entry in coffee gear — just go in knowing espresso dial-in means interpolating between clicks. When the habit sticks, our build-your-setup kits show where a dedicated espresso grinder fits.
Verdict
For espresso in 2026 the JX-Pro S is the correct tool: 12.5-micron clicks, a 48 mm burr, and dial-in you can repeat. The C2 is not a lesser JX-Pro S — it is a different product, the best budget all-rounder that happens to touch espresso. Spend the difference if espresso is the point; save it if it is not.
Check the current price on the 1Zpresso JX-Pro S · check the current price on the Timemore C2
FAQ
Is the Timemore C2 good for espresso?
It can grind espresso-fine, but its ~85 µm stepped clicks are coarse for dial-in; best for occasional shots and milk drinks. For daily espresso a finer-stepped grinder like the JX-Pro S (12.5 µm per click) saves real frustration.
Is the JX-Pro S the same grinder as the JX-Pro?
It is the current production version. The original JX-Pro line is listed out of stock at 1Zpresso’s own store; the JX-Pro S (Amazon US ASIN B0BJZZ51GY) carries over the 48 mm burr, 40-click adjustment, and 30–35 g capacity.
Can one hand grinder serve espresso and pour-over?
Yes — the JX-Pro S covers both with capacity to spare (30–35 g official), and the C2 covers both as long as espresso is occasional. If you split evenly, we’d pick the finer-stepped of the two.
Related reading
- Best hand grinder for espresso — the full field, not just these two.
- Baratza Sette 270Wi vs Encore ESP — the electric version of this same argument.
- Build your espresso setup — where the grinder budget should go at each tier.
- Best espresso machines for beginners — the other half of the kit.
Bench data availability: the measured numbers behind this article are published as the machine-readable CSV data/jx-pro-s-vs-timemore-c2-bench-2026.csv in the brewkit-bench-data repository on GitHub (last updated 2026-10-06, CC BY 4.0).