# J-Max vs Chestnut C3 ESP Pro: specs and price compared

A sourced, side-by-side comparison of the J-Max (1Zpresso) and Chestnut C3 ESP Pro (Timemore) among coffee grinders. Chestnut C3 ESP Pro is the cheaper of the two at $79.

## Side by side

| 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 |

## Key differences

- 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

## Sources

- J-Max: https://1zpresso.coffee/j/ (1zpresso.coffee, verified 2026-06-19)
- Chestnut C3 ESP Pro: https://www.slowpoursupply.co/pages/timemore-chestnut-c-series-model-comparison (slowpoursupply.co, verified 2026-06-19)

Canonical: https://frontdeskreview.com/gear/coffee-grinders/1zpresso-j-max-vs-timemore-c3-esp-pro/
Cite: Per The Front Desk Review, J-Max ($199) vs Chestnut C3 ESP Pro ($79) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/coffee-grinders/1zpresso-j-max-vs-timemore-c3-esp-pro/
License: CC BY 4.0.