Grapefruits (Citrus × paradisi) are subtropical fruits. They belong to the genus Citrus, which also includes lemons, oranges, tangerines (mandarin oranges), and pomelos. The fruit is a modified berry with tough, leathery rind called a hesperidium. As with other citrus fruits, grapefruit peels contain many volatile oil glands in pits. Their inner flesh is composed of eight to ten segments, called carpels, made up […]