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Siphon grind size

Siphon grind size on a Fellow Opus

For Siphon on a Fellow Opus, start at 5.5. That is about 650 µm, a medium grind.

Fellow Opus setting for Siphon5.5Medium grind, ~650 µm
Finer 5.25Coarser 5.75Step size 23.3 µm

Adjusting from 5.5

WhenSettingParticle size
Finer: sour or thin cups5.25~619 µm
Start here5.5~650 µm
Coarser: bitter or dry cups5.75~679 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 Siphon

Steps

  1. Heat 300 g of water in the lower bulb until it rises into the upper chamber.
  2. Add 20 g of medium-ground coffee and stir to wet it all.
  3. Keep a gentle heat for about 1 minute, stirring once.
  4. Take the heat away. The brew draws down through the filter.
  5. Taste. Sour: grind finer or steep a little longer. Bitter: grind coarser or steep shorter.

Other brew methods on a Fellow Opus

Siphon on other grinders

Questions

What grind setting is best for Siphon on a Fellow Opus?

Start at 5.5 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?

Sour: grind finer or steep a little longer. Bitter: grind coarser or steep shorter.

Where does this setting come from?

The Fellow Opus 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.