A Coffee Brewing Theory "4:6 method" Invented by Tetsu Kasuya_ World Brewers Cup 2016 Champion
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My favourite Brew Method - 4:6 Method by Tetsu Kasuya
Hario V60 Tetsu Kasuya method
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[HARIO]V60 Dripper Kasuya Model_how to brew[KDC-02-B]
Easy V60 Recipe - V60 4:6 Method & Technique
Brewing a Hario V60 Pour Over with the 4:6 Method by Tetsu Kasuya (including an easy calculator!)
Pour Over Coffee at HOME - TETSU KASUYA V60 4:6 Method
The 4:6 Method by Tetsu Kasuya (The most famous pour over recipe ever)