Concentrate Bypass

Kalita Wave 155 Kalita by Kalita

Kalita's Korean-style Wave 155 method brews a compact concentrate before a hot-water bypass. Slow early pours favor sweetness, while quicker later pours build body, yielding a strong cup whose final intensity is easy to tune.

1:14 Ratio

2:40 Total

20g Dose

90°C Temp

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Parameters

20 g
Coffee: 280 g
Water: 1:14
Ratio: 90 °C
Temp: 5 medium
Grind: 2:40
Total: ~280 ml
Yield

Grind · 5/10 · medium

FINE COARSE

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Method

2:40 · total

Bloom 1 / 8
0:00

45s

Pour in a spiral to 40g. Let it bloom.

+40g→ 40g Spiral 4g/s 10s 90°C
Pour 2 / 8
0:45

25s

Pour in a spiral to 80g.

+40g→ 80g Spiral 4g/s 10s
Pour 3 / 8
1:10

25s

Pour in a spiral to 120g.

+40g→ 120g Spiral 5g/s 8s
Pour 4 / 8
1:35

18s

Pour in a spiral to 160g.

+40g→ 160g Spiral 5g/s 8s
Pour 5 / 8
1:53

17s

Pour in a spiral to 200g.

+40g→ 200g Spiral 8g/s 5s
Wait 6 / 8
2:10

15s

Let the bed draw down completely.
Bypass 7 / 8
2:25

15s

Add 80g of bypass water directly to the cup to dilute the concentrate.

+80g→ 280g
Done 8 / 8
2:40

Diluted and ready to drink.

Notes

Keep the slurry low and pour gently at first, then increase flow without striking the filter walls. Add 60-100g of hot bypass water in stages, tasting between additions so clarity improves without making the cup hollow.

Original source

Recipe by Kalita, published at kalita.co.jp.

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