medium-fine grind · 320-960 microns
1Zpresso J-Max grind setting for AeroPress
Start at 2.3.0 on the 1Zpresso J-Max for AeroPress, and stay inside 2.0.0-2.6.0. Brew at 1:15 for 1:30-2:30.
180-240 clicks.
- Ratio
- 1:15
- Time
- 1:30-2:30
- Water
- 85-95 C
Taste, then fix
If it tastes wrong
| It tastes | Why | Do this on the J-Max |
|---|---|---|
| Sour, thin, sharp | Under-extracted: grind too coarse or steep too short | Go 2 to 3 steps finer, or add 30 to 60 seconds of steep time |
| Bitter, dry, harsh finish | Over-extracted: grind too fine or steep too long | Go 2 to 3 steps coarser, or cut 30 seconds of steep time |
| Hard to press | Grind too fine | Go 2 steps coarser; the press should take about 30 seconds of gentle pressure |
| Weak but not sour | Not enough coffee for the water | Tighten the ratio: use 1 to 2 more grams per 250 g of water |
What you are aiming for
The AeroPress is forgiving and works across a wide grind range. Finer grinds pair with shorter steeps, coarser grinds with longer ones.
On the 1Zpresso J-Max, 2.3.0 is the documented start. If your grounds look much finer or coarser than this, your grinder may be calibrated differently: trust the taste, then the number.
Fix the beans too
Better AeroPress starts with fresher beans.
The right grind only gets out what the beans have. A subscription keeps fresh coffee arriving before you run out.
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More 1Zpresso J-Max settings
Questions
What grind setting should I use on the 1Zpresso J-Max for AeroPress?
Start at 2.3.0 on the 1Zpresso J-Max for AeroPress, and stay inside 2.0.0-2.6.0. Brew at 1:15 for 1:30-2:30.
My AeroPress tastes sour on the 1Zpresso J-Max. What do I change?
Sour means under-extracted. Go 2 to 3 steps finer, or add 30 to 60 seconds of steep time. Change one thing at a time and taste again.
My AeroPress tastes bitter on the 1Zpresso J-Max. What do I change?
Bitter means over-extracted. Go 2 to 3 steps coarser, or cut 30 seconds of steep time.
Source
1zpresso.coffee, 1zpresso.coffee, 1zpresso.coffee. Settings are starting points; two grinders of the same model can sit a step or two apart.