1Zpresso
J-Max
$199
Best Coffee Grinders · head-to-head
J-Max vs Chestnut C3 ESP Pro
A sourced, side-by-side comparison. Chestnut C3 ESP Pro is cheaper at $79. Every spec and price links to its source.
Timemore
Chestnut C3 ESP Pro
$79Cheaper
Released 2022
Which is better: the J-Max or Chestnut C3 ESP Pro?
The Chestnut C3 ESP Pro wins 2 of the 2 specs we compare head to head; the other wins 0. The Chestnut C3 ESP Pro is the cheaper at $79. The Chestnut C3 ESP Pro both leads on specs and costs less — the straightforward pick.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | J-Max | Chestnut C3 ESP Pro |
|---|---|---|
| US price | $199 | $79 |
| Brand | 1Zpresso | Timemore |
| Released | — | 2022 |
| Type | manual | manual |
| Burr type | conical | conical |
| Burr size (mm) | 48 | 38 |
| Grind settings | 90 clicks per rotation (8.8 µm/click), external dial | 30 clicks per rotation (23.3 µm/click) |
| Hopper capacity (g) | 40 | 25 |
| Best for | espresso | all |
| Weight (lb) | 1.7 | 1.17 |
| Release | — | 2022 |
Sources — J-Max: 1zpresso.coffee (verified 2026-06-19). Chestnut C3 ESP Pro: slowpoursupply.co (verified 2026-06-19).
What's the difference between the J-Max and Chestnut C3 ESP Pro?
Where the two actually differ on the specs we track (5 of 7). Matching specs are omitted.
- Burr size (mm): J-Max 48 vs Chestnut C3 ESP Pro 38
- Grind settings: J-Max 90 clicks per rotation (8.8 µm/click), external dial vs Chestnut C3 ESP Pro 30 clicks per rotation (23.3 µm/click)
- Hopper capacity (g): J-Max 40 vs Chestnut C3 ESP Pro 25
- Best for: J-Max espresso vs Chestnut C3 ESP Pro all
- Weight (lb): J-Max 1.7 vs Chestnut C3 ESP Pro 1.17