4,700 member farmers washing some of Kirinyaga's most sought-after lots in Kirinyaga East since 1997.
Karithathi FCS was registered in 1997 and brings together 4,700 farmers in Kirinyaga East. Kiunyu and Kabingara factories wash cherry grown at about 1,640 m. Rainforest Alliance certified, the society delivered 247.3 tonnes of clean coffee in 2025/26.

The official society profile, as supplied to buyers and the exchange.
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Karithathi FCS
The society head office
Kiunyu Factory
Drying beds on the terraces
The drying field
Parchment on the bed