Coffea arabica var. sl17

Coffea arabica var. SL17 is a distinguished selection from the Scott Laboratories (SL) series, which was developed in Kenya during the mid-20th century. This series is widely considered one of the most successful coffee breeding programs in history, responsible for identifying and propagating the varieties that have made Kenyan coffee a global standard for quality. SL17, like its counterparts SL28 and SL34, was selected for its superior cup quality and its ability to thrive in the unique microclimates of the Kenyan highlands.

In the field, SL17 trees are known for their productivity and their ability to produce high-quality cherries under the right conditions. They are typically grown at high altitudes, where the cool temperatures and volcanic soil contribute to the development of the complex, bright acidity that is the hallmark of Kenyan coffee. The variety is highly valued by farmers for its consistent performance and the premium prices that its high-quality beans can command in the international market.

In the cup, SL17 is often praised for its vibrant, fruit-forward acidity and its complex, layered flavor profile. It is frequently described as having notes of black currant, citrus, and a deep, wine-like sweetness. These characteristics make it a highly sought-after variety for roasters who focus on single-origin offerings, as it provides a clear and distinct expression of its terroir. The beans are typically dense and well-formed, allowing for a variety of roasting approaches that can highlight its unique aromatic qualities.

For the coffee industry, SL17 is a prime example of the impact that scientific research and careful selection can have on coffee quality. It represents a legacy of innovation that continues to influence coffee production in Kenya and beyond. By understanding the traits and history of SL17, roasters and buyers can better appreciate the complexity of the coffee they are sourcing and the dedication of the farmers who work to maintain the quality of this iconic variety. It remains a vital part of the Kenyan coffee landscape, contributing to the country's ongoing reputation for excellence.