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Grinder conversion

DF DF64 Gen 2 to Timemore Sculptor 064

A V60 grind of about 39 on a DF DF64 Gen 2 is roughly 3.5 on a Timemore Sculptor 064. Both land near 560 µm, a medium-fine grind.

DF DF64 Gen 239V60 setting
Timemore Sculptor 0643.5V60 setting
Particle size ~560 µmGrind Medium-fine

Settings by brew method

Brew methodDF DF64 Gen 2Timemore Sculptor 064
Espresso~250 µm7Too fine
Moka pot~350 µm18Too fine
AeroPress~450 µm281.5
V60~560 µm393.5
Chemex~700 µm546
French press~900 µm749.5
Kalita Wave~600 µm434
Cold brew~1100 µm9513
Siphon~650 µm495

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.

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Questions

Is 39 on a DF DF64 Gen 2 the same as 39 on a Timemore Sculptor 064?

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 3.5 on the Timemore Sculptor 064.

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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