The tea gets its name from Kang-k'ou settlement in Man-chou village, and is a blend of four tea varieties perfected by Chu's great-great grandfather. It is a kind of Oolong, and rather strong. Its most special characteristic is its long-lasting aftertaste.
「港口茶」因產在滿州鄉港口村而得名，為朱順興的高祖父朱振淮，自大陸武夷山引進四種茶混種而成，屬烏龍茶，唯濃度較高，飲來先苦後甘，餘味無窮。