Why Two Cups Differ from One
Like boiling two packs of ramen vs. one — more volume changes heat distribution, extraction time, and flavor. Coffee tends to taste "darker" with larger amounts.
Setup Adjustments
- Dripper: Use 2-cup size or larger
- Coffee/water: 25g coffee, 400ml water (1:16)
- Grind: 1-2 clicks coarser than single-cup setting
- Temperature: +1°C (e.g., 97°C) to compensate for coarser grind
- Bloom: 80g water, 50 seconds (vs. 45s for single cup)
Pour Schedule
- 0:00-0:50 → 80g (bloom)
- 0:50 → pour to 170g
- 1:25 → pour to 260g
- 2:00 → pour 70g to 330g (slower, gentler)
- 2:30 → pour 70g to 400g