Hario Mini Mill Slim+:
Espresso Grind Settings & Guide
The Hario Mini Mill Slim+ is a manual conical burr grinder with 34mm burrs. It features stepped adjustment 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 Hario. Note: this grinder is not typically recommended for espresso without modification.
At a glance
Hario Mini Mill Slim+ specs
Burr Type
Conical 34mm
Adjustment
Stepped
Retention
Low (~0.1g)
Single Dose Friendly
Yes
Espresso Capable
No
Primary Use
Filter / Pour-over
Power
Manual (hand-powered)
Espresso starting range
Where to start for espresso
NOT designed for espresso
notch positions on the adjustment ring
Starting point only — adjust based on your beans, roast level, dose, and target yield.
Quirks & tips
Pocket travel grinder — excellent for filter on the go
Detailed notes
Ultra-portable conical travel grinder. Filter/pour-over only. Espresso is not feasible. Good honest advice: this grinder is not the right tool for espresso.
Dialing in with the Hario Mini Mill Slim+? Grindset speaks your grinder's language.
Tell Grindset which grinder you use and it gives you adjustment advice in Hario-specific terms — exact steps, not generic "grind finer" advice.
Try Grindset freeHario Mini Mill Slim+
Manufacturer
Hario
Burrs
Conical 34mm
Adjustment
Stepped
Retention
Low (~0.1g)
Primary Use
Filter / Pour-over