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Siphon grind size

Siphon grind size on a Timemore Chestnut C2

For Siphon on a Timemore Chestnut C2, start at 20 clicks. That is about 650 µm, a medium grind.

Timemore Chestnut C2 setting for Siphon20 clicksMedium grind, ~650 µm
Finer 19 clicksCoarser 21 clicksStep size 33.8 µm

Adjusting from 20 clicks

WhenSettingParticle size
Finer: sour or thin cups19 clicks~612 µm
Start here20 clicks~650 µm
Coarser: bitter or dry cups21 clicks~672 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 Timemore Chestnut C2

Siphon on other grinders

Questions

What grind setting is best for Siphon on a Timemore Chestnut C2?

Start at 20 clicks 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 Timemore Chestnut C2 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.