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The Kamwangi Washing Station, also known as the Kamwangi Coffee Factory, lies along the slopes of Mount Kenyain Kirinyaga County. It is one of three active washing stations owned and operated by the New Ngariama Coffee Farmers’ Cooperative Society, which represents 1,800 smallholder producers. Each farmer cultivates an average of 200–250 coffee trees on small plots of nutrient-rich volcanic soil.

At Kamwangi, coffee is processed using Kenya’s traditional double-soak method. After careful sorting and pulping, the coffee ferments for 24–28 hours, followed by washing and a second soak lasting 12–72 hours, a technique known for enhancing clarity and brightness. The coffee is then sun-dried on raised beds for 9–13 days. This meticulous process amplifies the vibrant acidity and layered fruit character that define exceptional Kenyan coffee.

Certified by the Rainforest Alliance, the Cooperative operates under the Nyeri umbrella, Kenya’s closest equivalent to Fair Trade Organic. It prioritizes sustainability through wastewater management, organic fertilization using recycled coffee pulp, and active tree-planting initiatives. Beyond quality and conservation, the Cooperative is committed to community impact, working to secure the highest possible returns for members while reinvesting in education, farming support, and long-term livelihoods.