How to Make Coffee Using the 4:6
This coffee recipe is a feature and adaptation of Tetsu Kasuya’s 4:6 Method – Basic. Tetsu Kasuya was crowned the World Brewers Cup Champion in 2016 with the invention of this unique brewing method. Using our filter roast coffees with TDS aim of 1.30, the Basic 4:6 Method gives you a balanced cup, which is clear and flavourful.
How to play
Step 1
Bring water to boil using the Drip Kettle or boil enough water to fill the Drip Kettle. While the water is heating, insert a paper filter into V60. Then, grind 20g of coffee.
Step 2
Set V60 on top of the Range Server. Rinse paper filter adequately with hot water. Empty the Range Server.
Step 3
Add 20g of coffee grounds into V60. Wiggle to level the coffee grounds. Then, tare the scale.
Step 4
Start timer. Pour 60g of hot water in a continuous circular motion, moving from the centre point into a wider circle and then back to the centre point. Complete this pour in 10 seconds, then pause.
Step 5
Repeat the pour another 4 times at intervals of 45 seconds. Each pour is 3x the amount of coffee grounds (i.e. 3 x 20g= 60g):
Brewing Phases (Basic 4:6 Method)
Time
Coffee Scale Reading
Water Amount to Add
00:00 / 0g / 60g
00:45 / 60g / 60g
01:30 / 120g / 60g
02:15 / 180g / 60g
03:00 / 240g / 60g
03:30 / 300g / Remove V60 Dripper
*Note: We recommend completing each pour in 10 seconds.
Step 6
At 3:30, remove V60 from Range Server. Serve and enjoy!
How To Make the 4:6 Method Work For You
Here are a few recommendations to make the 4:6 method a breeze.
The 4:6 extraction method uses medium ground powder to clarify the coffee's natural flavor by making it transparent. However, coarse grinding may result in coffee that is thinner than necessary.
1. Hario V60 Dripper Kasuya Model + 100 Filters 
This dripper has eliminated the ribs at the bottom inside, which is intentionally designed to slow down the fall of hot water. This allows the coffee to be well concentrated even when medium ground powder is used.
2. Mini Drip Kettle Kasuya Model
We created the Mini Drip Kettle Kasuya Model to make it easier to make a small drip or drip bag extraction for one or two cups. We had samples made many times and focused on the size, weight, and ease of pouring.
3. Hario V60 Coffee Drip Scale
The Hario V60 Coffee Drip Scale can measure the amount of hot water and time simultaneously, making it an essential item for brewing delicious coffee.