Iced and Cold Pour Over
Japanese-style iced coffee — also called flash brewing — is pour over's best summer trick: you brew hot, directly onto ice, so the coffee is chilled the instant it's extracted. This is not cold brew. The hot water still extracts the bright acidity and floral aromatics that cold brew mutes, and the ice flash-cools and dilutes the concentrate to drinking strength in one move, locking in a vivid, clean iced cup. ❄️
| Field | Value |
|---|---|
| Brewer | Hario V60 over a server of ice |
| Dose | 20 g |
| Water | 300 g total (ice + brew water) |
| Ratio | 1:15 (incl. melted ice) |
| Temp | 93-96°C (hot brew) |
| Grind | medium-fine, a touch finer than hot — see Grind Size for Pour Over |
| Bloom | 50 g for 45 s |
| Brew time | ~3:00 |
| Roast | light to medium |
| Source | Japanese iced method / composite |
| Resulting cup | Bright, aromatic, crisp; clean acidity, lighter body, refreshing |
#The Split: Ice + Hot Water
The trick is dividing your total water into ice in the server and hot brew water through the cone. A common split for 300 g total is ~120 g ice in the server and ~180 g hot water poured through. The ice melts into the brew, so it counts toward your ratio — skip it and the coffee comes out thin and over-diluted.
#Pour Schedule
- Setup — Put ~120 g ice in the server under the dripper; rinse the filter; add 20 g coffee.
- 0:00 — Pour 50 g hot water (cumulative 50 g brew water); bloom 45 s.
- 0:45 — Pour to 120 g (cumulative 120 g brew water) in circles.
- 1:30 — Pour to 180 g (cumulative 180 g brew water).
- ~2:30-3:00 — Drawdown completes onto the ice; swirl the server to melt remaining ice, then serve over fresh ice.
#Why It Works
Brewing hot captures the volatile aromatics and clean acidity that only dissolve well at high temperature — the very compounds slow cold brew leaves behind — while the ice arrests the brew before it warms and dulls, preserving them. Because roughly 40% of your water is ice, you brew a stronger-than-usual concentrate (effectively a tighter ratio through the cone), then the melt brings it to balance. Grind slightly finer than your hot recipe to compensate for the smaller volume of liquid actually passing through the bed.
This flatters bright, fruity, washed and light-roasted coffees spectacularly. For a chilled batch instead, scale up via the Batch Pour Over Recipe with the same ice-in-the-server principle.
#Continue Reading
- The Brew Ratio — why the ice counts as water
- Scales, Timers, and Servers — the server that holds the ice
- Brew Method Family Tree — flash brew vs true cold brew
- Batch Pour Over Recipe — scaling iced coffee up
- Acidity in Coffee — the brightness flash brewing preserves