Kenya Kirinyaga Kamwangi Washed

The Kamwangi factory, which is in the northeast part of Kirinyaga, is owned and managed by the New Ngariama Farmers Cooperative Society (F.C.S.). It is the second factory that the co-op established; New Ngariama F.C.S. now has three factories.
Roughly 985 active members deliver coffee to the factory; each farmer owns an average of 200–250 coffee trees. After harvesting, the farmers deliver cherry to the factory for sorting and separating, after which it is depulped on traditional disc depulping machines. It is then fermented for 24–28 hours in tanks, then washed in grading channels. The highest grades of coffee at this factory typically receive an additional soak of 12–24 hours, dependent solely on the available space on the drying beds. All of the coffee goes to skin-drying beds to bring the moisture content to around 44% before being spread on traditional drying beds for 9–13 days, being rotated constantly. Once the moisture content reaches 11–13%, the coffee is moved to conditioning bins, where it is stored and rotated every two days to help homogenize moisture content and stabilize the parchment coffee.

The Washed process in Kenya may vary slightly from place to place, but it generally contains a soaking step that is unique to this growing country. First the coffee is picked ripe and depulped the same day, then it is normally fermented in open-air tanks made of concrete or cement for 24–48 hours. It's then washed thoroughly using water channels before being soaked underwater for 12–72 hours. It is then spread on raised beds to dry.