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  3. DF DF64 Gen 2 to Timemore Chestnut C2

Grinder conversion

DF DF64 Gen 2 to Timemore Chestnut C2

A V60 grind of about 39 on a DF DF64 Gen 2 is roughly 18 clicks on a Timemore Chestnut C2. Both land near 560 µm, a medium-fine grind.

DF DF64 Gen 239V60 setting
Timemore Chestnut C218 clicksV60 setting
Particle size ~560 µmGrind Medium-fine

Settings by brew method

Brew methodDF DF64 Gen 2Timemore Chestnut C2
Espresso~250 µm78 clicks
Moka pot~350 µm1811 clicks
AeroPress~450 µm2814 clicks
V60~560 µm3918 clicks
Chemex~700 µm5422 clicks
French press~900 µm7428 clicks
Kalita Wave~600 µm4319 clicks
Cold brew~1100 µm9534 clicks
Siphon~650 µm4920 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

More about these grinders

Questions

Is 39 on a DF DF64 Gen 2 the same as 39 on a Timemore Chestnut C2?

No. The two grinders count in different steps, so the same number gives a different grind. 39 on the DF DF64 Gen 2 matches about 18 clicks on the Timemore Chestnut C2.

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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