Kam kwat (金橘) in Cantonese may well originate from kin-ku in Chinese. Translated it means 'golden orange' and it is the origin of the name of both the tree and the fruit called 'kumquat'. The tree grows to about four meters in height and is cultivated for its fruit but it is also a decorative indoor plant. Its leaves are dark green, bayonet shaped and its flowers similar to that of the orange tree. Its fruit is either round or oblong shaped depending on the variety and reaches a diameter of about four centimeters. When raw, its taste is tangy and bittersweet and the fruit is not particularly juicy.
Today the kumquat, which has earned a PDO (Protected Designation of Origin) status in 1994, is mainly cultivated on northern Corfu near the village of Nimfes. Annual production amounts to about 140 tonnes.
Most of the crop ends up as liqueur, but the fruit is also used in cooking. It even finds its way into perfumes.