THE PRODUCT DESIGN TEAM WORKED WITH MANY BARISTAS AND WORKED OUT AN IDEAL BLOOMING/DRIPPING TIME AND THE SHAPE THAT MAKES IT POSSIBLE- THE 20 RIBS CREATES AIR CHANNELS AND KEEPS THE BREWING SMOOTH AND CLOG-FREE, WHICH GIVES YOU GREAT CONTROL OVER THE DRIPPING SPEED. THE DRIPPER IS MADE OF MINO PORCELAIN- ONE OF JAPAN'S MOST PRESTIGIOUS POTTERIES WITH MORE THAN 400 YEARS OF HISTORY. THIS