Sibu Coffee Producers and Exporters source cherry from their own farm, farmers delivering to their 3 washing stations and farmers, washing stations or collectors selling dried coffee to Sibu. Arabica Hambella Natural is sourced from Sibu Coffee Producer and Exporter. The Guji region receives ample rainfall and is marked by steep mountainous terrain. The soils in the southern and western parts of the coffee-growing regions of Ethiopia are volcanic. Volcanic soil is rich in nutrients and minerals. Grades in Ethiopia depend on visual inspection for defects and on cup quality. Grade 1 is considered the highest quality coffee. Grade 1 is free of cup faults and taints and has zero quakers.