Hario Switch 02 Hario switch
Devil Switch
by Tetsu Kasuya
Tetsu Kasuya's "Devil" recipe for the Hario Switch. Uses two temperatures — 90°C for the pour-over phase and 70°C for the immersion phase — to maximize sweetness while minimizing bitterness.
Parameters
- 20 g
- Coffee
- 280 g
- Water
- 1:14
- Ratio
- 90 °C
- Temp
- 5 medium-fine
- Grind
- 3:30
- Total
- 1
- Servings
Method
3:30 · total-
Pour 1 / 60:00+60g add
To
60g
10s Circular Valve: OpenValve OPEN. Pour 60g of 90°C water as pour-over.
-
Pour 2 / 60:30+60g add
To
120g
10s Circular Valve: OpenValve OPEN. Pour 60g of 90°C water. Still percolation.
-
Pour 3 / 61:15+160g add
To
280g
15s Slow 70°C Valve: ClosedCLOSE valve. Switch to 70°C water. Pour 160g to reach 280g total. Immersion mode.
-
Wait 4 / 61:3090s
Steep with valve closed.
-
Wait 5 / 63:0030s Valve: Open
OPEN valve. Allow full drawdown.
-
Done 6 / 63:30
Drawdown complete. Target ~3:30.
Notes
Original source
Recipe by Tetsu Kasuya, published at timer.coffee.
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See all Hario Switch 02 recipes- 01 Ole Bøen Switch Hario Ratio 1:15 Time 3:00 Dose 16g 2020 Norwegian Brewers Cup Champion Ole Kristian Bøen's Hario Switch recipe. A hybrid immersion-percolation method that alternates between closed and open valve to combine the body of immersion with the clarity of pour-over. Ratio 1:15 Time 3:00 Dose 16g
- 02 Closed Bloom brewnotes.co Ratio 1:15.2 Time 2:15 Dose 12.5g A closed-valve immersion bloom on the Switch — the mirror of brewnotes.co's Open Bloom. The grounds steep for 45 seconds before the valve opens, then two percolation pours finish a sweet, balanced 1:15 cup. Ratio 1:15.2 Time 2:15 Dose 12.5g
- 03 Low Temperature Emi Fukahori Ratio 1:12.9 Time 2:55 Dose 17g 2018 World Brewers Cup Champion Emi Fukahori's Hario Switch recipe. Uses three temperature stages — starting cool at 80°C, then hot at 95°C, then cool again at 80°C — to extract different flavor compounds at optimal temperatures. Ratio 1:12.9 Time 2:55 Dose 17g
- 04 Iced Hario Ratio 1:9 Time 2:00 Dose 20g Hario Community's flash iced method for the Switch 02. Concentrated immersion brew released onto ice. Ratio 1:9 Time 2:00 Dose 20g
- 05 Gong Fu Lance Hedrick Ratio 1:16.7 Time 5:00 Dose 15g Lance Hedrick's gongfu-tea-inspired Hario Switch recipe: three sequential closed-valve immersions with fresh water each time, a 75°C "Samo bloom" to preserve volatiles, and a spoon-pour technique that lets the coffee bed do the filtering. Designed to be forgiving across grinders and pours. Ratio 1:16.7 Time 5:00 Dose 15g
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