A region is not a single variety
Sidama, Yirgacheffe, Guji and Harar describe regional coffee identities. They are not interchangeable with cultivar names. Ethiopia’s Arabica diversity includes local landraces and improved varieties, so a broad term such as heirloom is not a precise botanical identification.
World Coffee Research’s catalogue helps distinguish species, varieties and agronomic traits. Use it as a reference, not as proof that an offered lot contains a particular variety.
Washed offers and clarity
Washed regional lots are often sought for aromatic clarity, floral character and lively acidity. These are style expectations rather than guaranteed tasting notes. Harvest, station management, drying and storage still affect the cup.
Ask for station or producer identity and process records. A famous origin without traceability is an incomplete commercial offer.
Natural offers and fruit
Natural coffee dries within the cherry, giving processing and drying decisions a substantial influence on fruit character and fermentation expression. The term natural describes processing, not organic certification.
Look for cleanliness, consistency and controlled drying rather than assuming that a stronger fruit note always means a better lot.
Approve the actual sample
Specify harvest, region, producer or station, process, export grade and defects. Do not infer a cup score from a regional name or invent a score for a catalogue profile.
Use representative samples and consistent roast trials. Historical ICO processing research explains why preparation matters, but it is not a current specification for any supplier.
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