Tea is cultivated in Sri Lanka using the contour planting method, where bushes are organized into lines coordinating with the land, usually on slopes. This is one of few countries where each tea leaf is picked by hand rather than by mechanization. When machinery is used, a considerable number of coarse leaves and twigs are mixed in, which adds bulk but not flavor, to the tea. The tea industry on the island employs over a million people, a large proportion of which are young women. They are paid a disproportionately small wage compared with men who work on the plantations and are often subject to discrimination, substandard living conditions, and even violence. These daughters, mothers, and grandmothers are responsible for over a billion USD in revenue each year, while barely making enough to feed themselves and their families.