Grinders

Grinder

Akira Koki M520a

A budget 60 mm vertical flat-burr grinder that takes SSP burrs. Once upgraded, it was Lance Hedrick's pick of the budget flats in 2021.

Specs

DialKnob from 1 to 10 with about 180° of travel. Take out the centre screw and spring peg to make it stepless 36:27
ZeroWith the motor running, turn finer until the burrs chirp, set the knob just above its fine end and tighten it 30:52
SpeedAbout 2600 rpm, typical of this budget family 41:34

Starting settings

No one has shared grind settings for it yet.

Cup profile

Strengths

Weaknesses

Verdict

2021: the best budget flat once it has SSP burrs 36:27.

Sources

Summarised in our own words from the creators' videos, with every point linked to the moment it comes from. Notchbook isn't affiliated with or endorsed by any of these creators, so please watch the originals for full context. Sources

Dialling in from here

Compare with other grinders in the grind size chart, or see every grinder.

Notchbook is a free app that remembers the setting that worked on your Akira Koki M520a for each coffee and brew method, and keeps a journal of every brew. Get it free on Google Play. The iPhone app is coming soon. More about Notchbook.