Comandante
C40 MK4 Nitro Blade
$325
Released 2021
Best Coffee Grinders · head-to-head
C40 MK4 Nitro Blade 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 C40 MK4 Nitro Blade 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 | C40 MK4 Nitro Blade | Chestnut C3 ESP Pro |
|---|---|---|
| US price | $325 | $79 |
| Brand | Comandante | Timemore |
| Released | 2021 | 2022 |
| Type | manual | manual |
| Burr type | conical | conical |
| Burr size (mm) | 39 | 38 |
| Grind settings | ~40 clicks per rotation | 30 clicks per rotation (23.3 µm/click) |
| Hopper capacity (g) | 40 | 25 |
| Best for | all | all |
| Weight (lb) | 1.63 | 1.17 |
| Release | 2021 | 2022 |
Sources — C40 MK4 Nitro Blade: prima-coffee.com (verified 2026-06-19). Chestnut C3 ESP Pro: slowpoursupply.co (verified 2026-06-19).
What's the difference between the C40 MK4 Nitro Blade and Chestnut C3 ESP Pro?
Where the two actually differ on the specs we track (4 of 7). Matching specs are omitted.
- Burr size (mm): C40 MK4 Nitro Blade 39 vs Chestnut C3 ESP Pro 38
- Grind settings: C40 MK4 Nitro Blade ~40 clicks per rotation vs Chestnut C3 ESP Pro 30 clicks per rotation (23.3 µm/click)
- Hopper capacity (g): C40 MK4 Nitro Blade 40 vs Chestnut C3 ESP Pro 25
- Weight (lb): C40 MK4 Nitro Blade 1.63 vs Chestnut C3 ESP Pro 1.17
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
C40 MK4 Nitro Blade
Only one whitelisted hands-on reviewer survived verification: Tom's Guide, which lab-measured grind uniformity (Kruve sieves), retention (scale, before/after) and grind speed, and named the Comandante C40 MK4 Editor's Choice. Every quote and measured value in this entry was confirmed verbatim against the fetched article. Verdict: best-in-class hand grinder for consistency and low retention, but slow to crank at fine settings and very expensive. (1 sourced review, 1 lab-tested.)
Praised: Consistent, uniform grind across the full range (verified via Kruve sifter test); Low grind retention, averaging 2.75%; Exceptional build quality and ergonomic body/handle.
Flagged: Very expensive (~$277-$323); Hard and slow to crank at finer settings (below ~20 clicks); No indicator showing the current click/grind setting.
Chestnut C3 ESP Pro
No sourced tester review yet.