Kinu M47 Classic to Timemore Chestnut C3

A V60 grind of about 3.4 on a Kinu M47 Classic is roughly 15 clicks on a Timemore Chestnut C3. Both land near 560 µm, a medium-fine grind.

Kinu M47 Classic3.4V60 setting

Timemore Chestnut C315 clicksV60 setting

Particle size ~560 µmGrind Medium-fine

Settings by brew method

Brew method	Kinu M47 Classic	Timemore Chestnut C3
Espresso~250 µm	1.5	7 clicks
Moka pot~350 µm	2.1	10 clicks
AeroPress~450 µm	2.7	12 clicks
V60~560 µm	3.4	15 clicks
Chemex~700 µm	4.3	18 clicks
French press~900 µm	5.5	23 clicks
Kalita Wave~600 µm	3.6	16 clicks
Cold brew~1100 µm	6.7	28 clicks
Siphon~650 µm	3.9	17 clicks

Both grinders are mapped to one particle-size scale, fitted from the Honest Coffee Guide's per-method charts. It is not manufacturer burr-gap data, so treat this as a starting point and adjust by taste.

Go the other way

Timemore Chestnut C3 to Kinu M47 Classic

More about these grinders

Questions

Is 3.4 on a Kinu M47 Classic the same as 3.4 on a Timemore Chestnut C3?

No. The two grinders count in different steps, so the same number gives a different grind. 3.4 on the Kinu M47 Classic matches about 15 clicks on the Timemore Chestnut C3.

How accurate is this conversion?

It is a starting point. Both grinders are mapped to particle size in microns, fitted from the Honest Coffee Guide charts for each brew method, not from manufacturer burr-gap specs. Beans, roast and burr wear change the result, so adjust by taste.

The coffee tastes sour or bitter after converting. What should I change?

Sour and thin: grind finer by a step or two. Bitter and harsh: grind coarser. Change one thing at a time.

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