What is Coffea stenophylla?

Coffea stenophylla is a wild coffee species endemic to the highland forests of Guinea, Sierra Leone, and Ivory Coast in West Africa. Distinct from Arabica and Robusta, it's one of the few Coffea species to have attracted serious commercial interest in recent years.

Research published in 2021 drew significant attention when it confirmed that wild stenophylla plants had survived in Sierra Leone's highlands despite being assumed extinct in the wild for decades. The research also found something remarkable: when cupped by experienced tasters, stenophylla produced a flavour profile broadly comparable to quality Arabica - complex, nuanced, and clean.

The significance is in what stenophylla can tolerate. It grows at higher temperatures and lower altitudes than Arabica can survive - making it a potential candidate for climate adaptation as growing conditions shift in traditional Arabica regions. Research and commercial trials are ongoing. It may not be commercially relevant for many years, but it's one of the most genuinely interesting stories in the coffee industry right now.