4:6 Method Calculator

Tetsu Kasuya's 4:6 pour-over method for any dose. The first 40% of the water sets sweetness and acidity; the last 60% sets strength. Pick both and get every pour in grams, with the time to pour it.

Coffee dose (g)

Ratio

Taste balance (first 40%)

Strength (last 60%)

Total water

300

grams

120g

First 40%

180g

Last 60%

3:30min

Remove dripper

Pour	Start at	Pour (g)	Scale reads (g)

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New to the V60?

The 4:6 method is a V60 recipe. The pour-over guide covers filters, rinsing and pouring technique.

Read the guide →

How the 4:6 Method Works

Phase	Share of water	What it controls
Pours 1 and 2	40%	Sweetness vs acidity. A smaller first pour is sweeter; a larger one is brighter.
Pours 3 onward	60%	Strength. More, smaller pours brew stronger; fewer, bigger pours brew lighter.
Draw-down	—	Remove the dripper at 3:30, even if water remains.

4:6 Recipes by Dose (1:15, Standard)

Coffee (g)	Water (g)	First 40% (g)	Each later pour (g)

Frequently Asked Questions

What is the 4:6 method?

A V60 pour-over recipe from Tetsu Kasuya, who won the 2016 World Brewers Cup with it. The water is split 40/60: the first 40% in two pours tunes sweetness and acidity, and the last 60% tunes strength.

What ratio does the 4:6 method use?

1:15. The classic recipe is 20 g of coffee to 300 g of water at 92 C (198 F), with a coarse grind and a total time of about 3:30.

How do I make 4:6 coffee sweeter or brighter?

Change the first pour. Less water in the first pour gives a sweeter cup and more water gives a brighter, more acidic cup. The second pour tops the total up to 40% of the water.

How do I make 4:6 coffee stronger?

Split the last 60% of the water into more, smaller pours. Fewer, bigger pours brew a lighter cup. Keep the dose and grind the same.

What grind size is used for the 4:6 method?

Coarse, close to French press. The many pours already add contact time, so a fine grind will choke the bed. See the grind size guide.

Which coffee works best for the 4:6 method?

Light and medium roasts with clear sweetness and acidity, where the balance control matters most. Browse light roast coffees or the full 600+ specialty coffee index.

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Find a coffee worth tuning

The 4:6 balance control shines with bright, sweet light roasts. Browse 600+ specialty coffees.

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