Kenya Yara Peaberry: AA Coffee from Kiambu Estate

When you buy a bag labeled 'Kenya Peaberry', you’re not just getting a rare bean shape—you’re expecting something special. But what makes Kenya’s peaberries different? And why do farms like Yara, tucked into the highlands near Nairobi, consistently produce some of the most vibrant coffees in the world? This is the story behind one specific lot: Kenya Kiambu Yara Peaberry, a celebrated AA-grade coffee grown at 1732 metres above sea level.

The Kenya Kiambu Yara Peaberry is an AA-grade coffee grown at 1732m altitude, processed using washed method, and showcasing notes of dark fruit, raisin, citrus acidity, and sweet undertones of guava and grapefruit.

What Is the Kenya Kiambu Yara Peaberry?

The Kenya Kiambu Yara Peaberry is a single-origin coffee produced at Yara Estate, located approximately 23km north of Nairobi in Kenya’s Kiambu County. This lot is classified as AA—the highest commercial grade in Kenya—indicating uniformly large, dense beans. It is grown at 1732 metres above sea level, within a region that receives 988–1300mm of annual rainfall. The coffee is processed via the washed method, uses the renowned SL28 and SL34 varieties, and comes from peaberries—beans formed when a coffee cherry produces a single round seed instead of two flat ones.

Where Is Yara Estate and What Makes It Unique?

Yara Estate lies in Kenya’s Central Province, in Kiambu County, near other large farms such as Cianda and Windrush. Established in 1902 by British immigrant Edward, the estate originally focused on cattle before shifting to coffee cultivation in 1930. In 1971, management transitioned to Gatatha Farmers Co. Ltd, which redirected operations toward speciality coffee and tea production. The estate spans around 640 acres, with coffee planted at the highest elevations, tea nearby, and livestock kept at lower altitudes. The farm benefits from deep red, well-drained soils, consistent rainfall, and natural shade from indigenous acacia-like trees (Alibizia), which support biodiversity including antelope, monkeys, and porcupines. Yara is also pursuing Rainforest Alliance certification.

Why SL28 and SL34 Excel at High Altitude

The Yara Peaberry is grown from two of Kenya’s most iconic coffee varieties: SL28 and SL34. Developed by Scott Laboratories in the 1930s, these cultivars were selected for their exceptional performance at high altitudes and ability to develop complex acidity in cooler temperatures. SL28 is known for its pronounced blackcurrant, citrus, and wine-like acidity, while SL34 offers a balanced fruit acidity alongside hints of nuttiness and spice. These varieties thrive particularly well in Kenya’s red, high-phosphorus volcanic soils and under the slow maturation process enabled by high-altitude conditions, typically between 1200–2000m. The result is a cup with intense fruit character, high sweetness, and a crisp, lingering acidity.

How Kenya’s Washed Process Enhances Fruit Flavour

Kenyan coffee, including the Yara Peaberry, is processed using a meticulous washed (wet) method that heightens its signature fruit brightness. After harvesting, coffee cherries are de-pulped and then fermented for around 48 hours to break down the mucilage. This is followed by 24 hours of soaking in clean water to ensure complete removal of the sticky layer. This extended fermentation and washing cycle accentuates the coffee’s intrinsic acidity and juiciness, contributing to the vibrant flavours of grapefruit, guava, and dark stone fruit found in the Yara Peaberry. The method, combined with careful sorting and the estate’s altitude-driven slow ripening, ensures a clean, complex cup.

Frequently Asked Questions

What is a Kenya AA grade coffee?

Kenya AA is the highest commercial coffee grade in the country, based on bean size and density. AA beans are typically larger than AB and are screened to be 17–18+ on the Kenya grading sieve. They are often associated with higher elevations and more complex cup profiles, though grade alone doesn’t determine quality—it’s a starting indicator of bean selection.

What is a peaberry in coffee?

A peaberry is a natural mutation where a coffee cherry produces a single rounded seed instead of the usual two flat beans. These peas are typically smaller, denser, and sometimes roast and brew differently due to their shape and uniformity. Peaberries occur in roughly 5% of all coffee cherries and are often separated during sorting for specialty lots.

Where is the Yara Estate located?

Yara Estate is located in Kiambu County, approximately 23km north of Nairobi, Kenya. It sits in the central highlands at 1732m altitude and is part of Kenya’s major coffee-growing region, neighbouring other large estates like Cianda and Windrush.

What coffee varieties are used in the Yara Peaberry?

The Yara Peaberry is grown from the SL28 and SL34 varieties, which were developed by Kenya’s Scott Laboratories in the 1930s. These varieties are favoured for their ability to express high acidity, complex fruit flavours, and wine-like brightness, especially when grown at elevation.

How is Kenyan coffee processed?

Kenyan coffee, including the Yara Peaberry, is typically processed using a washed method. This involves removing the coffee cherry skin, fermenting the beans to remove the mucilage, washing them thoroughly in clean water, and then drying them on raised beds. The process is known for enhancing clarity, acidity, and fruit characteristics in the cup.

What flavours can I expect from the Yara Peaberry?

The Yara Peaberry features tasting notes of dark fruit, raisin, citrus acidity, and sweet notes of guava and grapefruit. These flavours reflect the estate’s high altitude, the SL28 and SL34 varieties, and Kenya’s signature washed processing style.

Recommended FrontStreet Beans for Peaberry Fans

Try FrontStreet Coffee’s Kenya Little Tomato, a classic Kenyan offering showcasing the famed SL28 and SL34 varieties with bright notes of tomato, bergamot, and lime, complemented by a sugary sweetness. For a fruit-forward experience, the Kenya Giti Natural offers juicy blueberry, raspberry, and tropical hints with a winey finish. Both beans highlight the complexity and acidity Kenyan coffees are known for. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.