KENYA muthuaini AA
General Information
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Origin: Kenya
County: Nyeri Cooperative: Mutheka FCS Washing Station: Muthuaini Farmers: Smallholder producers (part of Mutheka FCS with ~5,000 members across all factories) Cultivar: SL28 - SL34 - Ruiru 11 - Batian Altitude: 1700-1900 masl Process: Fully washed with double fermentation Harvest: October 2025 - December 2025 Cherry Price | FOB Price: 5.38 USD/kg | 8.67 USD/Kg Screen | Moisture | Density: 17 | 11% | 0.721 g/ml Packaging: 30 Kg with GrainPro Score: 86.6 Notes: Rose, Blackcurrant, Grapefruit, and Brown sugar. |
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TRACEABILITYMuthuaini AA comes from the Muthua‑Ini Coffee Factory, a wet mill located in the highlands of Nyeri County on the southern slopes of Mount Kenya — an area renowned for producing some of Kenya’s most expressive and vibrant Arabica coffees. The mill operates under the Mutheka Farmers’ Cooperative Society (FCS), an umbrella organization established to support smallholder producers by providing reliable processing facilities, agronomic training, and quality control.
The Mutheka FCS includes multiple coffee processing factories, with Muthuaini being one of them. Mutheka spans approximately ~7 wet mills and encompasses nearly 5,000 smallholder farmer members, each tending small plots of coffee trees at high elevation where volcanic red soils, cool nights, and consistent rainfall create optimal conditions for slow cherry development and dense bean formation. Farmers deliver hand‑picked ripe cherries on the same day to the Muthuaini wet mill. Upon arrival, next‑day sorting removes underripe and overripe cherries. The cherries are mechanically pulped, then fermented in fresh water to remove mucilage, thoroughly washed, and graded based on density. After washing, the coffee is dried meticulously on raised African beds for several days until it reaches target moisture levels. The slow drying allows sugars and acids to balance, enhancing clarity and fruit intensity in the cup. Once dried, the coffee is transported to a dry mill for hulling, final grading (AA screen size), and preparation for export — often through the Nairobi Coffee Exchange auction system or direct specialty contracts with importers. IS 1 USD PER 1 KG OF CHERRY POSSIBLE?Things are changing for the better in Kenya, the average price of coffee cherries has increased from USD 0.45 per kg of cherry in 2016/2017 to USD 0.80 per kg of cherry in the year 2020/2021, a 78% grow! But what has happened in the year 2021/2022?
According to information from the Nairobi Coffee Exchange (NCI), coffee production increased by 64% in the 2021/2022 harvest, compared to the previous year, and income increased by 90% in the same period. This is the result of a lower supply to the global market, because in Brazil, the harsh weather conditions caused up to 20% of the entire harvest to be lost in the last season. And in Ethiopia, the world's fifth largest producer, agricultural activities have been interrupted by the conflict between the government and the militia in the Tigray region. Various Cooperatives of Coffee Producers in Kenya have announced the highest payment rates in history, which in some cases of cooperatives in Nyeri reach USD 1.10 per kg of cherry. This has generated excitement in many coffee growers, increasing the average production per coffee tree from 0.9 kg to 3 kg, which is still low, if we compare it with Latin American origins. In the case of the cooperatives with which we are working this season, we have found that the best payment reaches USD 1.06 per kg of cherry in Kagumoini factory and the worst USD 0.82 per kg of cherry for the New Murarandia factory. Our goal of reaching 1 USD per 1 Kg of cherries is getting closer, and we hope that it will be a widespread achievement for the entire Kenyan industry and serve as an example for other origins in Africa and the world, where payments per Kg of cherries they are much lower than in Kenya. A particularly worrying case is that of Burundi, where only USD 0.16 is paid for 1 kg of cherries. WHY FARMERS ARE GRAFTING RUIRU 11 WITH SL 28?Grafting is a horticultural technique whereby plant tissues are joined together to continue growing together. The upper part of the combined plant is called the stem, while the lower part is called the rootstock.
The Ruiru 11 variety was released in 1985. The name of the variety has the prefix "Ruiru" which refers to the location of the Kenya Coffee Research Station where the variety was developed. The variety is not only resistant to CBD and CLR, but is also compact, allowing farmers to intensify production per unit of land. The cultivar SL 28 was selected at the former Scott Laboratories (now the National Agricultural Laboratories, NARL located in Kabete) on the basis of a single tree, of the drought resistant variety Tanganyika selected in northern Tanzania in 1931. The prefix SL in the strain name stands for Scott Laboratories where the strain was selected. The variety is suitable for medium to high altitude coffee growing areas. In an attempt to change "low organoleptic reputation" of Ruiru 11, farmers are grafting it with SL28. For the lower part, they use the root of SL 28 which is much longer than that of Ruiru, and it can absorve more nutrients from the fertile Kenyan volcanic soils. For the top part, they use Ruiru 11, which is more resistant to coffee diseases than SL. They do this to gain the best of both worlds, the cup quality of the SL, with the strength and productivity of the Ruiru 11. |
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