Wahundura AB

  • Country
  • Region
    Central Kenya
  • County
    Murang'a County
  • Factory
  • Farmers' Cooperative Society
    Kamachiria FCS
  • Factory Manager
    Mercyline Kamete
  • Factory Elevation
    1,840 meters above sea level
  • Average Farm Elevation
    1,750-1,850 meters above sea level
  • Average Farm Size
    0.25 Hectare
  • Variety
    SL28, SL34, Ruiru 11, Batian
  • Coffee Grade
  • Processing
  • Relationship Length
    Since 2020

Good structure and clarity, with lemon-lime acidity, redcurrant and ruby grapefruit. Juicy and clean.

Wahundura is a washing station – or factory, as they are called in Kenya – built in the 1960s and located in Murang’a County in Kenya’s former Central Province. It is one of four active washing stations – along with its sisters Kagumoini, Riakiberu and Karugiro – owned by the Kamachiria Coffee Farmers’ Cooperative Society (FCS). Kamachiria is made up of over 5,600 producers who farm in Kenya’s central highlands.

Wahundura receives coffee cherries from 1,326 local members of the cooperative (962 male, 364 female) who grow coffee trees on nearby farms, located between 1750-1850 meters above sea level. The factory is managed by Mercyline Kamete, who oversees the collection and careful processing of the coffee cherries. Besides Mercyline, Wahundura employs five permanent staff members from the local communities and an additional five or six workers during the season.



Kamachiria FCS was formed in 1972. Most of their 5,600 farmer members inherited their farms from their parents who were existing members of the cooperative. Kamachiria now owns four washing stations – Wahundura, Kagumoini, Riakiberu and Karugiro. The cooperative supports its farmer members by offering pre-harvest financing, allowing them to plan and invest in the upcoming crop. They also buy inputs in bulk and distribute them to members at a lower cost than otherwise possible.

Kamachiria has six members on its board, which is currently overseen by Chairman Peterson Kinyati and Senior Manager Jane Ngunjin. Board members must be active farmers and are re-elected every three years, to avoid corruption. The cooperative employs 25 permanent staff members, who work out of their office in Murang’a town.


Kamachiria FCS employ Sucastainability as their marketing agent. Chairman Ngurevalues Sucastainability’s services for their on the ground approach to improving productivity and quality through training and education programs. Beyond this, Sucastainability connects Kiama FCS to specialty focused buyers (like MCM) that will pay high premiums for exceptional quality. Head here to learn more about Sucastainability’s work in Kenya.


Murang’a County is part of Kenya’s former Central Province, which was dissolved in 2013. The area includes Murang’a, Nyeri, Kirinyaga, Kiambu and Nyandarua Counties, and is traditionally the homeland of people of Kikiyu ethnicity. The central highlands of Kenya are considered to be one of the wealthiest areas of the country, due to the incredibly fertile land, geographical proximity to the capital, Nairobi, and close integration with the country’s colonial administration before Kenya gained independence in 1962. This integration afforded the communities of Central Kenya with opportunities for education, business and political prowess, despite the various injustices of the colonial government. The Kikiyu people have a long and proud history of agriculture and the region is farmed intensively, with coffee, tea and dairy being the most important modern crops.


The coffees in this lot are grown in the foothills of the extinct volcano, Mt Kenya, in an area defined by its bright red, nutrient-rich, volcanic soil, high elevations and cool climate, all of which contribute to the outstanding quality of coffees produced here. Most farmers in Murang’a are smallholder cooperative members – with farm size averaging just one hectare – and grow coffee as a cash crop alongside food crops like banana, maize, macadamia, avocados and vegetables. Tea and dairy are also important sources of income for the producers. Once harvested, coffee cherries are delivered to a centralised factory where they are processed and dried, ahead of being transported to Nairobi for sale (either directly or through the auction system).

Many of the producers in the region are second-generation landholders, whose parents would have purchased and planted the land. Most coffee farms in Murang’a were planted in the 1950s, after agricultural reform allowed for small Kenyan farmers to produce cash crops on their family farms (instead of only on large, British owned estates). At that time, it was recommended to plant SL-28 and SL-34, which remain the predominant varieties found in the area and make up over 50% of this lot. Both cultivars have Bourbon and Moka heritage and are named after the laboratory that promoted their wider distribution in Kenya during the early 20th Century: Scott Laboratories. This lot also contains around 20% of the hybrid variety Ruiru 11, which was cultivated as a more robust variety with better resistance to Coffee Berry Disease and Coffee Leaf Rust. The remainder of the lot is made up of Batian, a newer, hardier hybrid that has been bred specifically for its high yields and disease resistance coupled with a high potential for excellent cup quality.


Kenya uses a grading system for all its exportable coffee lots. The grading system is based on the size and assumed quality of the bean. A coffee’s grade is directly correlated with the price it attracts at auction or through direct trade.


This coffee is AB grade. This grade is easily defined by size (in this case, AB means that the beans are screen size 15 and above) and to a certain extent, quality. While it is assumed that AA lots represent the highest quality, we have often found AB and PB lots to be as good, if not better.


All the coffee cherry is hand-picked and delivered on the same day to the washing station, where it undergoes meticulous sorting. This is also done by hand and is overseen by a ‘cherry clerk’ who ensures any unripe and damaged cherries are removed. The ripe cherry is then digitally weighed and recorded, and the farmer receives a receipt of delivery.

The coffee is then placed in a receiving tank and pulped using a pulping machine to remove the skin and fruit from the inner parchment layer that protects the green coffee bean. After being pulped, the coffee is sorted by weight using water, with the highest quality and densest beans being separated out from the lighter, lower-quality beans.

The coffee is then dry fermented for 8 hours, to break down the sugars and remove the mucilage (sticky fruit covering) from the outside of the beans. Whilst the coffee is fermenting it is checked intermittently and when it is ready it is rinsed and removed from the tanks and placed in a washing channel.

The parchment-covered coffee is then washed with fresh water from the nearby Rwarai and Gatura Rivers and sent through water channels for grading by weight. The heavier coffee, which sinks, is considered the higher quality, sweeter coffee, and any lighter density or lower grade coffee beans are removed. The beans are then sent to soaking tanks where they sit underwater for a further 12 hours. This process increases the proteins and amino acids, which in turn heightens the complexity of the acidity.

After soaking, the coffee is pumped onto deep drying beds where they drain for 1-2 hours, before being transferred to raised drying tables (also known as African beds). As they dry the parchment is turned constantly to ensure even drying, and so that any defective beans can be identified removed. Time on the drying tables depends on the weather, ambient temperature and processing volume: taking anywhere from one to two weeks to get to the target moisture of 11–12%. After drying the coffee is moved to conditioning beds, where it rests in parchment for about a month. This resting period helps to stabilise water activity and contributes to long-lasting quality and vibrancy in the cup.

Once the coffee is ready it is transported to Kahawa Bora Mill (“good coffee mill”) to be dry milled and prepared for shipping. Kahawa Bora is located in Thika, about 1hrs drive from Nairobi.