Drip Coffee Recipe & Brewing Timer

Calculate target water volume relative to coffee beans and brew using step-by-step sound countdown guides

Input coffee weight (g) and target brew ratio to calculate total water volume in real time. Use Kasuya's 4:6 rule or standard pour-over countdowns with audio cues to brew delicious drip coffee.

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How to use

  1. Adjust coffee bean weight (g) with the slider (10g to 50g).
  2. Select your target extraction ratio (1:15 recommended).
  3. Choose between the 4:6 method and standard balanced pour-over.
  4. Click 'Start Drip' and pour water up to the target scale for each step (Blooming, 1st to 4th Pour).
  5. Follow the beep sounds indicating when to move to the next pouring step.

FAQ

What is the 4:6 brewing method?
Designed by World Brewers Cup champion Tetsu Kasuya, it splits the total water: 40% adjusts sweetness and acidity, while the remaining 60% adjusts body strength.
Should I follow the timer's stage times exactly regardless of my grind size or roast level?
The timer's stage durations are standard values based on a medium roast and medium grind. A finer grind or darker roast extracts faster and can lead to over-extraction (bitterness), while a coarser grind tends toward under-extraction (sourness). For your first few brews, taste the result and fine-tune your grind size accordingly.
Should I follow the timer's stage times exactly regardless of my grind size or roast level?
The timer's stage durations are standard values based on a medium roast and medium grind. A finer grind or darker roast extracts faster and can lead to over-extraction (bitterness), while a coarser grind tends toward under-extraction (sourness). For your first few brews, taste the result and fine-tune your grind size accordingly.

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