Iyula CPU (Central Unit Process) is located in the Mbozi District, the largest administrative district of the Mbeya region of Tanzania. Mbozi District is also the largest producer of Arabica coffee in Tanzania. This washing station is located at an altitude of 1740m and enjoys an average of 1000mm of annual rainfall and red volcanic clay soils. Local farmers grow the N39 varieties and process their cherries in the washing stations. They have an average of 400 coffee trees and deliver to Iyula CPU for processing. The main function of the CPU is to receive farmers' coffee cherries, process them (process, dry and sell) and then deliver coffee to the Mlowo Dry Station for machining and bagging before export. The CPU advocates good agricultural practices among its affiliated farmers. Water is treated before being released into water sources and cherry pulp collected by farmers for use as mulch on their farms to improve soil structure and organic matter content.