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Hario Switch 03

Switch 03 Dark Roast

Hario Switch 03 Hario switch by Hario

Hario's dark-roast method uses the larger Switch 03 for a full immersion sized to share. Gentler heat and controlled contact favor roast sweetness and weight while limiting the bitterness and dryness dark coffee can release.

1:15 Ratio
3:50 Total
30g Dose
88°C Temp
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Parameters

30 g
Coffee
450 g
Water
1:15
Ratio
88 °C
Temp
7 medium-coarse
Grind
3:50
Total
~450 ml
Yield
Grind · 7/10 · medium-coarse
FINE COARSE

What is 7/10 on your Comandante C40 or 1Zpresso? Gota turns it into clicks

Method

3:50 · total
  1. Pour 1 / 6
    0:00
    30s

    Close the switch. Pour 450g gently.

    +450g→ 450g Fill gently Valve: Closed 88°C
  2. Swirl 2 / 6
    0:30
    10s

    Stir 2 times.

    5s Valve: Closed
  3. Steep 3 / 6
    0:40
    1m30s

    Let it steep.

    1m 30s Valve: Closed
  4. Prepare 4 / 6
    2:10
    5s

    Open the switch.

    Valve: Open
  5. Wait 5 / 6
    2:15
    1m35s

    Wait until it stops dripping.

    1m 30s Valve: Open
  6. Done 6 / 6
    3:50

    Drawdown complete.

Notes

Keep the valve fully closed through the steep and use water cooler than you would for a light roast. Choose a medium-coarse grind, release gently, and shorten contact before lowering heat further if the aftertaste is ashy.

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Next step

Let Gota run the timer.

This exact recipe, step by step on your iPhone — haptics at every pour, live water targets, and a brew log that remembers how the cup turned out.

  • Audio and haptic cues per step
  • Scale the dose — ratios follow
  • Save it and log your brew

Free iOS No signup 1003 recipes by 126 baristas