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Hario Switch 02

Double Immersion

Hario Switch 02 Hario switch by Ryan Wibawa

2024 Indonesian Brewers Cup Champion and 3rd place WBrC 2024 Ryan Wibawa's Hario Switch recipe. Two closed-valve immersions on a rising temperature ladder — 86°C for the bloom, 92°C for the second — with a short drain between them.

1:14.7 Ratio
2:54 Total
15g Dose
86°C Temp
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Parameters

15 g
Coffee
220 g
Water
1:14.7
Ratio
86 °C
Temp
6 medium
Grind
2:54
Total
~220 ml
Yield
Grind · 6/10 · medium
FINE COARSE

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Method

2:54 · total
  1. Pour 1 / 10
    0:00
    10s

    Close the switch. Pour 100g gently.

    +100g→ 100g Fill gently 86°C Valve: Closed
  2. Steep 2 / 10
    0:10
    35s

    Let it steep.

    35s Valve: Closed
  3. Prepare 3 / 10
    0:45
    8s

    Open the switch.

    Valve: Open
  4. Prepare 4 / 10
    0:53
    3s

    Close the switch.

    Valve: Closed
  5. Pour 5 / 10
    0:56
    15s

    Pour the final 120g gently to 220g.

    +120g→ 220g Fill gently 92°C Valve: Closed
  6. Steep 6 / 10
    1:11
    50s

    Let it steep.

    50s Valve: Closed
  7. Prepare 7 / 10
    2:01
    3s

    Open the switch.

    Valve: Open
  8. Wait 8 / 10
    2:04
    45s

    Let the bed draw down completely.

    Valve: Open
  9. Swirl 9 / 10
    2:49
    5s

    Swirl gently.

    5s Valve: Open
  10. Done 10 / 10
    2:54

    Finish when the coffee stops dripping.

Notes

The gesture is the ladder, not the low start. 86°C on the bloom extracts sweetness and body without astringency; the hotter 92°C on the second immersion then pulls the acidity and aromatics the cooler water left behind. Both stages steep with the valve CLOSED — the switch only opens to drain. Wibawa resets his timer when he closes the valve for the second immersion, so the 1:05 he cites is measured from that reset, not from first contact. Wibawa placed 3rd at 2024 WBrC with this method.

Original source

Recipe by Ryan Wibawa, published at hario-europe.com.

More Hario Switch 02 recipes

See all Hario Switch 02 recipes
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The Ice Brew

by Andrew & Serena

1:12 Ratio
20g Coffee
240g Water

Ole Bøen Switch

by Hario

1:15 Ratio
16g Coffee
240g Water
4:10 Total

Closed Bloom

by brewnotes.co

1:15.2 Ratio
12.5g Coffee
190g Water
2:15 Total

Low Temperature

by Emi Fukahori

1:12.9 Ratio
17g Coffee
220g Water
2:55 Total
Cold

Iced

by Hario

1:9 Ratio
20g Coffee
180g Water
2:00 Total

Other Hario switch models

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