The grapefruit (lat. citrus ×paradisi) is an orange colored plump fruit with juicy flesh. The interior takes on a white, yellow or red color, depending on the variety. It originated at that time from a cross between orange and grapefruit and has a sour, bitter and slightly fruity taste. Grapefruit is also known as Adam's apple or paradise apple. The evergreen grapefruit tree can reach a height of 15 meters and now grows in many countries with subtropical climate. The main country of grapefruit cultivation today is the USA with 60%.