Grinder comparison
Comandante C40 MK4 vs Fellow Opus
The Fellow Opus makes the smaller adjustments (23.3 µm a step against 27.9 µm), so it gives finer control between settings. Both reach the same grind sizes, just at different numbers.
Side by side
| Comandante C40 MK4 | Fellow Opus | |
|---|---|---|
| Setting format | Click | Number |
| Finer direction | Lower numbers | Lower numbers |
| Smallest adjustment | 27.9 µm | 23.3 µm |
| Steps from espresso to French press | 23 | 28 |
| Espresso setting~250 µm | 9 clicks | 1.25 |
| Moka pot setting~350 µm | 13 clicks | 2.25 |
| AeroPress setting~450 µm | 17 clicks | 3.25 |
| V60 setting~560 µm | 21 clicks | 4.5 |
| Chemex setting~700 µm | 26 clicks | 6 |
| French press setting~900 µm | 33 clicks | 8.25 |
| Kalita Wave setting~600 µm | 22 clicks | 5 |
| Cold brew setting~1100 µm | 40 clicks | 10.25 |
| Siphon setting~650 µm | 24 clicks | 5.5 |
This compares how the grinders adjust, not build quality, burr type or price. Settings come from one shared particle-size scale fitted from the Honest Coffee Guide and are a starting point.
Convert between them
- Comandante C40 MK4 to Fellow Opus
- Fellow Opus to Comandante C40 MK4
- Comandante C40 MK4 settings
- Fellow Opus settings
Questions
Which grinder has finer adjustment, the Comandante C40 MK4 or the Fellow Opus?
The Fellow Opus makes the smaller adjustments (23.3 µm a step against 27.9 µm), so it gives finer control between settings. Both reach the same grind sizes, just at different numbers.
Can I use the same setting on both?
No. A V60 grind is about 21 clicks on the Comandante C40 MK4 and 4.5 on the Fellow Opus.