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Hario Switch 03

Switch 03 Batch Brew

Hario Switch 03 Hario switch by Hario

Hario Europe's official Switch brewing guide scales the hybrid format to the Switch 03: an immersion bloom transitions into open-valve percolation, producing a shareable batch with ample body and clean flavor separation.

1:16 Ratio
3:30 Total
30g Dose
95°C Temp
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Parameters

30 g
Coffee
480 g
Water
1:16
Ratio
95 °C
Temp
6 medium
Grind
3:30
Total
~480 ml
Yield
Grind · 6/10 · medium
FINE COARSE

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Method

3:30 · total
  1. Bloom 1 / 5
    0:00
    45s

    Close the switch. Pour 80g in a spiral. Let it steep.

    +80g→ 80g Spiral 6.2g/s 13s Valve: Closed 95°C
  2. Pour 2 / 5
    0:45
    30s

    Pour in a spiral to 250g.

    +170g→ 250g Spiral 6.1g/s 28s Valve: Closed
  3. Pour 3 / 5
    1:15
    45s

    Open the switch. Finish in a spiral to 480g.

    +230g→ 480g Spiral 6.1g/s 38s Valve: Open
  4. Wait 4 / 5
    2:00
    1m30s

    Wait until it stops dripping.

    1m 30s Valve: Open
  5. Done 5 / 5
    3:30

    Drawdown complete.

Notes

Use a slightly coarser grind than for a single serving so the deeper bed drains without bitterness. Saturate the larger dose fully during the closed bloom, then open the valve before later pours and keep the water column controlled.

Original source

Recipe by Hario, published at hario-europe.com.

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1:14.4 Ratio
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360g Water
4:25 Total

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450g Water
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Next step

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