Soil, Shade, and Climate: The Hidden Drivers of Ethiopian Arabica Quality
Time to spill: A decade of data from Ethiopia’s Gedeo Zone reveals coffee quality isn’t about altitude alone. Researchers found that soil health, microclimates, and farming practices shape arabica’s flavor and yield more than any single factor. The study, published in Beverage Plant Research, dismantles the myth of a one-size-fits-all approach, offering a blueprint for resilience in a warming world. The Gedeo Zone’s 18 kebeles, analyzed through 2013-2022 farm records and GIS tools, exposed a complex web of variables. Soil cation exchange capacity—how well soil retains nutrients—emerged as the top contributor to variation, followed by evapotranspiration and shade trees. Nitrogen,…