The Gaaki Coffee Factory is located in Nyeri County, Kenya, at an altitude of approximately 1,750 meters above sea level. This high elevation, combined with the region's fertile volcanic soil and optimal climate, creates the ideal environment for cultivating high-quality coffee. Gaaki is part of the Othaya Farmers' Cooperative Society (FCS), a network of 18 wet mills established in the late 1950s to support smallholder farmers. Positioned southwest of Mount Kenya, the factory benefits from a climate with warm days and cool nights, which slow the maturation process and enhance the complexity of flavours.

The primary varieties grown and processed at Gaaki are SL28 and SL34, both renowned Kenyan cultivars celebrated for their exceptional cup quality. The factory employs a Washed (fully washed) processing method, which involves carefully hand-picking ripe cherries, pulping, fermentation, thorough washing, and sun-drying on raised beds. This meticulous process emphasises the bright acidity, fruity notes, and deep sweetness that characterise Kenyan coffees.

Coffee cultivation in Kenya experienced significant growth during the early 20th century under British colonial rule, leading to the formation of cooperatives like Othaya FCS. These cooperatives continue to offer essential resources, training, and structured marketing platforms for smallholder farmers.