• Country
  • Province
    Southern Province
  • District
    Nyamagabe District
  • Region
    Kamageri Sector
  • Washing Station
  • Elevation
    1,800 - 2,000m above sea level
  • Variety
    Red Bourbon
  • Processing
  • Washing Station Owners
    Buf Coffee
  • Relationship Length
    Since 2011

Chamomile and lemon blossom florals, with a Riesling-like acidity and tea-like body. Complex and refined.

This 100% Red Bourbon lot was grown by smallholder producers who farm coffee in the high hills surrounding Nyarusiza washing station, in the Kamageri Sector of Nyamagabe District, in Rwanda’s rugged Southern Province. Nyarusiza was established in 2003 and is the first of four washing stations owned and managed by the influential company, Buf Coffee.

The washing station sits at 1,743m above sea level, overlooking a landscape of vibrant green hills and rich red earth.  The area surrounding the washing station has mineral-rich soil and a lush environment that is well suited to specialty coffee production. This station services about 700 local producers in total, who deliver fresh cherry daily during the harvest period. Coffees at Nyarusiza are processed with meticulous care and attention, resulting in exceptional clarity and cleanliness in the cup.


Quality control and day-to-day operations at Nyarusiza are overseen by the station manager, Jean Pierre Ayirwanda, who is assisted by Head of Quality Control, Eugenie Kanakuze. Together, they ensure that the coffee is harvested and processed with care and that production standards are kept at the highest possible level. Nyarusiza typically provides jobs for 60 seasonal workers during the peak harvest and staffs five permanent positions. At the end of each season, any surplus profits are shared with the producers and washing station managers.

Typically, farms in Nyamagabe District are very small – averaging around a hectare (or 300-600 trees) – and are situated between 1,800 to 2,000 meters above sea level. Coffee is grown as a cash crop, alongside subsistence food crops like maize, beans and sorghum and some livestock like goats and chickens. Cows are also an important asset to a farming family. Besides having practical advantages – like providing milk and yoghurt to feed the family, producing excellent manure for the coffee farms, and being an opportunity for additional income – they are also a traditional symbol of wealth and status in Rwanda.

Head here to learn more about the work of Buf Coffee in Rwanda.


  • The ripe cherries are picked by hand and then delivered to the washing station either on foot, by bike, or by trucks that pick up cherries from various pick-up points in the area.
  • Before being pulped, the cherries are deposited into flotation tanks, where a net is used to skim off the floaters (less dense, lower grade cherries). The heavier cherries are then pulped the same day using a mechanical pulper that divides the beans into three grades by weight.
  • The beans (in parchment) are then dry-fermented (in a tank with no added water) overnight for 8–12 hours. They are then sorted again using grading channels; water is sent through the channels and the lighter (i.e. lower grade) beans are washed to the bottom, while the heavier cherries remain at the top of the channel.
  • The wet parchment is then soaked in water for around 24 hours, before being moved to pre-drying beds where they are intensively sorted for around six hours. This step is always done while the beans are still damp because the green (unripe) beans are easier to see. It is also always done in the shade to protect the beans from direct sunlight (which they have found helps to keep the parchment intact and therefore protects the bean better).
  • The sorted beans are finally moved onto raised African drying beds in the direct sun to dry slowly over 10–20 days. During this time the coffee is sorted carefully for defects and turned regularly to ensure the coffee dries evenly. It is also covered in the middle of the day when the sun is at its hottest.
  • Once at 11–12% humidity, the coffee (still in its parchment) is stored in the washing station’s warehouse in carefully labelled lots until it is ready for export. The coffee is then sent to Buf’s dry mill, Ubumwe (built 2017), to be dry-milled. Here the parchment is removed, and the beans are sorted again by hand and using machinery to remove any physical defects. This is done under the watchful eye of Edouine Mugisha, who has worked with Buf since 2011. Having control over the milling of the coffee means that Buf has greater control over the quality of sorting and processing from cherry delivery right through to export.


We have been working with Buf since 2009 and always adore visiting Nyarusiza washing station, where we are welcomed with incredible warmth and generosity of spirit. Each year we look forward to featuring delicious coffee lots from this very special coffee washing station.