Comandante C40 MK3:
Espresso Grind Settings & Guide
The Comandante C40 MK3 is a manual conical burr grinder with 39mm burrs. It features stepped adjustment (~30µm per step) and is designed primarily for filter and pour-over brewing. With low retention (~0.1g) and a single-dose-friendly design, it's a popular choice from Comandante.
At a glance
Comandante C40 MK3 specs
Burr Type
Conical 39mm
Adjustment
Stepped
Step Size
~30µm per step
Retention
Low (~0.1g)
Single Dose Friendly
Yes
Espresso Capable
Yes
Primary Use
Filter / Pour-over
Power
Manual (hand-powered)
Espresso starting range
Where to start for espresso
8–18 clicks for espresso
numbered clicks from closed position (each click ≈ 30 microns)
Starting point only — adjust based on your beans, roast level, dose, and target yield.
Quirks & tips
Previous generation — same core mechanism as MK4
Detailed notes
Same mechanism as MK4 with minor cosmetic and engineering refinements. Same grind quality and adjustment profile.
Dialing in with the Comandante C40 MK3? Grindset speaks your grinder's language.
Tell Grindset which grinder you use and it gives you adjustment advice in Comandante-specific terms — exact steps, not generic "grind finer" advice.
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Manufacturer
Comandante
Burrs
Conical 39mm
Adjustment
Stepped
Retention
Low (~0.1g)
Primary Use
Filter / Pour-over