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Espresso grind size

Espresso grind size on a Breville Smart Grinder Pro

For Espresso on a Breville Smart Grinder Pro, start at 6. That is about 250 µm, an extra fine grind.

Breville Smart Grinder Pro setting for Espresso6Extra fine grind, ~250 µm
Finer 3Coarser 9Step size 10.5 µm

Adjusting from 6

WhenSettingParticle size
Finer: sour or thin cups3~223 µm
Start here6~250 µm
Coarser: bitter or dry cups9~283 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 Breville Smart Grinder Pro

Espresso on other grinders

Questions

What grind setting is best for Espresso on a Breville Smart Grinder Pro?

Start at 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?

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 Breville Smart Grinder Pro 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.