— · ratio —
— g coffee · — g water
Grind: — · Brew time: — · Water temp: —
| Method | Ratio | Grind | Brew time |
|---|---|---|---|
| Espresso | 1:2 | Fine | 25–30 s |
| AeroPress | 1:14 | Medium-fine | 1–2 min |
| Moka pot | 1:10 | Fine-medium | 4–5 min |
| French press | 1:15 | Coarse | 4 min |
| Pour over (V60) | 1:16 | Medium | 2:30–3:30 |
| Chemex | 1:17 | Medium-coarse | 4–5 min |
| Drip / batch brewer | 1:17 | Medium | 4–6 min |
| Cold brew | 1:8 | Coarse | 12–18 h |
How the math works
Coffee:water ratio is by weight (1 ml water ≈ 1 g). Coffee weight = water ÷ ratio. The SCA "golden ratio" is 1:18 for filter; espresso is much stronger at 1:2. Strength slider adjusts ratio ±15% — lower ratio means stronger / more coffee per cup.
Always weigh, never scoop. A 2g change in dose per cup is the difference between bitter and weak.