This highly decorated peaberry coffee is grown by sustainably-conscious farmers of the Ndumberi co-operative in the much lauded Kiambu County sitting on southern edge of the Aberdare mountains. Ndumberi, an advocate for good agricultural practices, is certified under the 4C Association, UTZ, Rainforest and standards. Registered in 1960, the society has grown its membership from 430 to 3,000 as  members' coffee improves in quality and gains better market access and higher prices. Leadership at Ndumberi continues to invest in training and quality control, agronomy support and digitization. The society uses its Fair-trade premiums to buy medicine dispensed at the Riabai dispensary, pay security personnel stationed at the Gaita factory, and install clean water tanks.  If that was not all, Ndumberi extends credit to its member for farm inputs, laborer wages and family emergencies. 


  • Producer: Small-holder farmers | Ndumberi co-op

  • Region: Kiambu Town . Kiambu County . Kenya

  • Variety: SL28 . SL34 . Ruiru 11

  • Harvest Season: September-January | 2018 - 20119

  • Rain Season: March - May | October - December

  • Altitude: 1,750-1,850 meters

  • Soil: Friable Volcanic Loam

  • Process: Fully-Washed | Dried on Raised-Beds

This unique society owns three well-equipped wet mills (Ndumberi, Riabai and Ngaita) and a cupping lab that allows its members to analyze the quality of their coffees. This smooth peaberry is processed at the Ndumberi factory. The impeccable processing, supervised by factory manager Peter Mbugua, begins with sorting cherry for both ripeness and density and ends with a long post-ferment soak before being spread on raised drying tables.

Even as Ndumberi makes marked strides in improving production, Kiambu in general is facing rapid decline mostly pressured by urbanization and industrialization. The expansion of the Thika Superhighway has led to an explosion of the real estate market, along with the development of several major projects such as Tatu City. Such urban expansions are eating away at many of Kenya’s larger coffee plantations.