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Chemex grind size

Chemex grind size on a Fellow Ode Gen 2

For Chemex on a Fellow Ode Gen 2, start at 5.6. That is about 700 µm, a medium grind.

Fellow Ode Gen 2 setting for Chemex5.6Medium grind, ~700 µm
Finer 5.3Coarser 5.9Step size 9.5 µm

Adjusting from 5.6

WhenSettingParticle size
Finer: sour or thin cups5.3~673 µm
Start here5.6~700 µm
Coarser: bitter or dry cups5.9~733 µm

Lower numbers are finer. To grind finer, turn the setting down. Change one step at a time, and brew again before changing anything else.

Starting recipe for Chemex

Steps

  1. Rinse the thick filter well and dump the water.
  2. Add 30 g of medium-coarse coffee.
  3. Pour 60 g, wait 45 seconds, then pour slowly to 480 g by about 2:30.
  4. Let it drain. Total time is around 4:00 to 4:30.
  5. Taste. Sour: grind a little finer. Bitter or muddy: grind coarser.

Other brew methods on a Fellow Ode Gen 2

Chemex on other grinders

Questions

What grind setting is best for Chemex on a Fellow Ode Gen 2?

Start at 5.6 and adjust by taste. Lower numbers are finer. To grind finer, turn the setting down.

How do I know if I should grind finer or coarser?

Fast and sour: grind finer by a step or two. Slow and bitter: grind coarser.

Where does this setting come from?

The Fellow Ode Gen 2 is mapped to particle size in microns, fitted from the Honest Coffee Guide's settings for this grinder. It is a starting point, not a guarantee.