The numbers 74110, 74112, 74158 and similar appear increasingly on Ethiopian bags, and they are genuine variety names rather than lot codes.
Where they come from
Ethiopia’s Jimma Agricultural Research Centre selected them in 1974 from local landraces, screening for resistance to coffee berry disease, which was devastating plantings at the time.
The numbers are accession identifiers from that programme.
Why they are appearing now
As Ethiopian traceability has improved, roasters can name what is actually in the bag rather than defaulting to “heirloom”. Many washing stations receive cherry from farms planted with known selections.
The cup
Clean, floral and citric — recognisably Ethiopian, and generally more consistent than mixed landrace lots because the genetics are uniform.
Heirloom versus selection
Both are Ethiopian. “Heirloom” means a mixture of uncatalogued landraces; a numbered selection means a specific, propagated line.
Brewing it
Filter, light roast, a clean brewer.