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Grinder conversion

1Zpresso Q2 to Breville Smart Grinder Pro

A V60 grind of about 1.6.1 on a 1Zpresso Q2 is roughly 35 on a Breville Smart Grinder Pro. Both land near 560 µm, a medium-fine grind.

1Zpresso Q21.6.1V60 setting
Breville Smart Grinder Pro35V60 setting
Particle size ~560 µmGrind Medium-fine

Settings by brew method

Brew method1Zpresso Q2Breville Smart Grinder Pro
Espresso~250 µm0.7.16
Moka pot~350 µm1.0.115
AeroPress~450 µm1.3.125
V60~560 µm1.6.135
Chemex~700 µm2.0.249
French press~900 µm2.6.168
Kalita Wave~600 µm1.7.239
Cold brew~1100 µm3.2.087
Siphon~650 µm1.9.044

Both grinders are mapped to one particle-size scale, fitted from the Honest Coffee Guide's per-method charts. It is not manufacturer burr-gap data, so treat this as a starting point and adjust by taste.

Go the other way

More about these grinders

Questions

Is 1.6.1 on a 1Zpresso Q2 the same as 1.6.1 on a Breville Smart Grinder Pro?

No. The two grinders count in different steps, so the same number gives a different grind. 1.6.1 on the 1Zpresso Q2 matches about 35 on the Breville Smart Grinder Pro.

How accurate is this conversion?

It is a starting point. Both grinders are mapped to particle size in microns, fitted from the Honest Coffee Guide charts for each brew method, not from manufacturer burr-gap specs. Beans, roast and burr wear change the result, so adjust by taste.

The coffee tastes sour or bitter after converting. What should I change?

Sour and thin: grind finer by a step or two. Bitter and harsh: grind coarser. Change one thing at a time.

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