Grind size guide

Every brew method lives somewhere on this scale. Drag to feel the difference.

1 → 100

PARTICLE SIZE

ACTUAL SIZE · 1:1

Medium · 50about 710 µm

120406080100

1–20Very fine
Extraction 20–35 s
Packed tightly, so water moves through slowly.
Like powdered sugar
Espresso · Turkish coffee · Moka pot
21–40Fine
Extraction 1–3 min
Quick to extract without choking.
Like fine table salt
AeroPress · Siphon · Pour-over, very light or dense beans
41–50Medium
Extraction 2–3 min
Flow and resistance in balance. Most light-roast pour-over lands here.
Like granulated sugar
Pour-over, light roasts (V60, Kalita Wave, Chemex) · Drip
51–60Medium-coarse
Extraction 2:30–3:30
A little more open, for medium roasts on any dripper.
Like coarse sea salt
Pour-over, medium roasts (any dripper) · Drip
61–80Coarse
Extraction 2:30–4 min
Open, so water flows through freely. Dark roasts give up flavour fast.
Like rock salt
Pour-over, dark roasts · French press
81–100Very coarse
Extraction 12–24 h
Very open, so the brew takes hours.
Like rough sand
Cold brew (long steep) · Percolator

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BrewMind starts from your brew method's zone, then adjusts for roast date and the extraction it's aiming for.