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Espresso grind size

Espresso grind size on a Niche Zero

For Espresso on a Niche Zero, start at 0.20. That is about 250 µm, an extra fine grind.

Niche Zero setting for Espresso0.20Extra fine grind, ~250 µm
Finer 0.18Coarser 0.22Step size 12.4 µm

Adjusting from 0.20

WhenSettingParticle size
Finer: sour or thin cups0.18~218 µm
Start here0.20~250 µm
Coarser: bitter or dry cups0.22~278 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 Espresso

Steps

  1. Weigh 18 g of coffee and grind it.
  2. Distribute and tamp level, then lock in the portafilter.
  3. Start the shot and the timer together, with the cup on a scale.
  4. Stop at about 36 g in the cup, around 25 to 30 seconds.
  5. Taste. Sour or thin: grind finer. Bitter or dry: grind coarser.

Other brew methods on a Niche Zero

Espresso on other grinders

Questions

What grind setting is best for Espresso on a Niche Zero?

Start at 0.20 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?

Shots run fast and taste sour: grind finer, or raise the dose a little. Shots run slow and taste bitter: grind coarser.

Where does this setting come from?

The Niche Zero 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.