The brand is famous for the kyoka (comic [satirical] tanka) that played on words associated with the arrival of the Black Ships (jokisen [steamboat] in Japanese) by Matthew Calbraith PERRY, 'Jokisen is such a good tea that you have trouble sleeping at night with just four cups and rouses you from your quiet long sleep.'
1853年、マシュー・カルブレース・ペリーによる浦賀への黒船来航（蒸気船）とかけた狂歌「泰平の眠りをさます上喜撰たつた四杯で夜も寝られず」で有名。