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  3. 1Zpresso J-Ultra to Eureka Mignon Specialita

Grinder conversion

1Zpresso J-Ultra to Eureka Mignon Specialita

A V60 grind of about 2.2.8 on a 1Zpresso J-Ultra is roughly 1+1.5 on a Eureka Mignon Specialita. Both land near 560 µm, a medium-fine grind.

1Zpresso J-Ultra2.2.8V60 setting
Eureka Mignon Specialita1+1.5V60 setting
Particle size ~560 µmGrind Medium-fine

Settings by brew method

Brew method1Zpresso J-UltraEureka Mignon Specialita
Espresso~250 µm1.0.21
Moka pot~350 µm1.4.23
AeroPress~450 µm1.8.35
V60~560 µm2.2.81+1.5
Chemex~700 µm2.8.51+4
French press~900 µm3.6.62+2
Kalita Wave~600 µm2.4.41+2
Cold brew~1100 µm4.4.73+0
Siphon~650 µm2.6.41+3

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 2.2.8 on a 1Zpresso J-Ultra the same as 2.2.8 on a Eureka Mignon Specialita?

No. The two grinders count in different steps, so the same number gives a different grind. 2.2.8 on the 1Zpresso J-Ultra matches about 1+1.5 on the Eureka Mignon Specialita.

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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