Kirinyaga County Coffee Mill Ltd — precision milling, grading and cup-profiling under farmer ownership.
Founded in 1959, Kirinyaga County Cooperative Union Ltd represents 14 primary coffee cooperatives on the fertile southern slopes of Mt. Kenya. We carry the farmer's voice through the entire value chain — milling at Kirinyaga County Coffee Mill Ltd, trading through Kirinyaga Slopes Coffee Brokerage Co. Ltd.
Stand-in — original KCCU photography to followCherry picked on a member’s smallholding reaches the Nairobi Coffee Exchange as a graded, cupped lot. Every step below happens inside the Union — at one of 65 factories, at our mill in Kerugoya, or in our own laboratory.
Members hand-pick only ripe red cherry, garden by garden, through the main crop from October to December.
Member gardens · 1,400–1,900 m
Cherry is weighed in at the factory the same day it is picked and recorded against the member number.
Same-day delivery · weighed and recorded
Disc pulpers strip the skin and separate the cherry into grades by density before fermentation begins.
Density grading at the pulper
Parchment rests in tanks so the mucilage breaks down — the step that sets Kirinyaga acidity.
Overnight in tank
Parchment is washed through grading channels in river water, which separates it once more by density.
River water · channel graded
Parchment dries on raised beds for up to three weeks, turned by hand and covered through the mid-day sun.
Raised beds · 14–21 days
Dry parchment comes to the Union mill in Kerugoya, where hulling and cleaning release the green bean.
County Coffee Mill · Kerugoya
Screens and gravity tables sort the bean into AA, AB, PB, C, E, TT and MBUNI before it is weighed into lots.
Screen and density sorted
Every outturn is roasted and cupped in the Union laboratory, and the score follows the lot to the auction floor.
Union laboratory · every outturnParchment arrives from member factories, weighed and logged per society for full traceability.
The parchment layer is removed to reveal green beans, with minimal breakage.
Density and screen sorting remove defects and foreign matter.
Beans are separated into AA, AB, PB, C and secondary grades by size and density.
Every outturn is sample-roasted and cupped to document its flavour profile.
Lots are bagged, sealed and dispatched to the Nairobi Coffee Exchange or direct buyers.
A professional shoot of our mill, factories and farmers is planned — stand-in imagery marks each frame of the shot list.
The milling plant
Delivery yard
Plant control
