Tea from Rwanda - the land of a thousand hills

View at dusk from Kibuye across Lake Kivu towards the Congo Photograph: Tim Smith

Tea pickers make their way to work at dawn on the Gisovu tea estate where the steep slopes, acidic soils and high altitude make them unsuitable for growing food crops, but ideal for the cultivation of tea Photograph: Tim Smith

Plucking tea on a hillside on the Kitabi tea estate where the steep slopes, acidic soils and high altitude make them unsuitable for growing food crops, but ideal for the cultivation of tea Photograph: Tim Smith

Plucking tea on a hillside on the Mata tea estate Photograph: Tim Smith

A group of tea pluckers with their morning's work make their way across a hillside on the vast Kitabi tea estate to a weighing station. The tea is collected from these stations and taken to the factory at the centre of the estate Photograph: Tim Smith

A group of tea pickers are caught in a downpour outside a collecting station in Kitabi, the town at the centre of the huge Kitabi tea estate. Tea growing relies on a cool climate combined with lots of rain and sunshine Photograph: Tim Smith

Weighing the picked tea at a collection station on the Kitabi tea estate Photograph: Tim Smith

Fermenting the tea at carefully controlled temperatures at the Gisovu tea factory turns the tea from green to brown Photograph: Tim Smith

Winnowing grain at the Institute of Agricultural Science of Rwanda (ISAR). A department of the National University of Rwanda in the town of Butare, ISAR carries out research and conservation work on crops such as tea and natural flora and fauna Photograph: Tim Smith

A group of school children are caught in a downpour in Kitabi Photograph: Tim Smith

Members of the first primary class at the school run alongside the Kitabi tea factory. Children from up to 10kms away walk to the school, which provides free education for 525 pupils in six classrooms. Some children of tea farmers and estate workers attend in the morning, others in the afternoon Photograph: Tim Smith

Ferdinand Nyirinyema and his wife, Agnes, with the youngest of their seven children. He is employed as a weighing clerk at the Gisovu tea factory, and they both work on the small farm they have bought with savings from his wages Photograph: Tim Smith

Tea worker at a memorial service to commemorate the victims of the genocide of 1994, an event which decimated the Rwandan tea industry. Every year employees of the tea industry gather together from all over Rwanda to remember their colleagues who died. In 2010 the service was held at Shangasha tea estate on the shore of Lake Kivu Photograph: Tim Smith

Tea workers throw flowers into Lake Kivu at a memorial service to commemorate the victims of the genocide of 1994. Many people were forcibly drowned in Lake Kivu, which was also used to dispose of tens of thousands of bodies Photograph: Tim Smith