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Grinder conversion

Fellow Ode Gen 2 to Option-O Lagom P64

A V60 grind of about 4.1 on a Fellow Ode Gen 2 is roughly 3.2 on a Option-O Lagom P64. Both land near 560 µm, a medium-fine grind.

Fellow Ode Gen 24.1V60 setting
Option-O Lagom P643.2V60 setting
Particle size ~560 µmGrind Medium-fine

Settings by brew method

Brew methodFellow Ode Gen 2Option-O Lagom P64
Espresso~250 µmToo fine0.1
Moka pot~350 µm1.91.1
AeroPress~450 µm2.92.1
V60~560 µm4.13.2
Chemex~700 µm5.64.6
French press~900 µm7.76.6
Kalita Wave~600 µm4.53.6
Cold brew~1100 µm9.88.6
Siphon~650 µm54.1

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 4.1 on a Fellow Ode Gen 2 the same as 4.1 on a Option-O Lagom P64?

No. The two grinders count in different steps, so the same number gives a different grind. 4.1 on the Fellow Ode Gen 2 matches about 3.2 on the Option-O Lagom P64.

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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