Why Do Ethiopian Coffee Beans Come in So Many Different Shapes? Introduction to Sidamo Region's Santa Vene 74158 Coffee

Why Do Ethiopian Coffee Beans Vary in Size and Shape?

Ethiopia is recognized as the birthplace of arabica coffee and is Africa's largest coffee exporter, beloved for its distinctive floral and citrus profiles. FrontStreet Coffee carries many Ethiopian lots — and if you buy them regularly, you've probably noticed the beans vary noticeably in size and shape. Does that mean poor quality?

Not at all. Ethiopia grows an enormous number of coffee varieties — over ten thousand by most counts, though the majority remain unidentified and unclassified. Different varieties naturally produce beans of different sizes and shapes, and that diversity ends up in the bag.

How Coffee Is Grown in Ethiopia

Ethiopian coffee comes mainly from three systems: garden cultivation, estate cultivation, and forest cultivation. Garden cultivation is the most common, accounting for more than half of national production. Farmers plant coffee in their backyards or intercropped with other crops on plots under 4 hectares, then deliver their cherries to nearby processing stations or cooperatives for processing and export.

Forest cultivation, meanwhile, centers on the southwestern Kaffa Zone — the region where coffee was first discovered. The Kaffa forests still hold countless wild arabica mother trees, arguably the richest genetic reservoir of arabica in the world. Around these forests, roughly 30 coffee cooperatives have formed; when the cherries ripen, farmers venture into the forest to pick them for processing and sale.

What "Heirloom" Really Means

In the garden system, most farmers can't identify — let alone separate — the varieties they grow. The trees may have been planted by previous landowners or shared among neighbors, and during harvest, stations pool cherries from many households into single batches that may contain several unnamed varieties. The result is beans of mixed sizes and shapes: true "blended batches."

Forest lots follow the same logic. With so many unidentified varieties growing side by side, farmers can't sort them at harvest, so these mixed lots are labeled "Heirloom" — the native, inherited varieties of the region.

Ethiopia's Grading System

Because bean size is inherently uneven, Ethiopia grades differently from other origins: not by screen size, but purely by defect rate and cup quality. Even top-graded lots can contain smaller beans — the biggest visual difference from other coffee-producing countries.

Under the latest system run by the Ethiopia Commodity Exchange (ECX), 300g samples are graded on defect count and cupping scores into six grades: G1 through G5, plus Grade UG (split into parchment P and non-parchment NP). Uneven shapes and sizes, in other words, say nothing about quality.

JARC Varieties

Beyond the regional landraces, Ethiopia also grows JARC varieties developed by the Jimma Agricultural Research Center, a federal agricultural research institute, with the aim of boosting disease resistance and yields. Between 1973 and 1975 the center collected 639 coffee varieties from 15 regions for identification and cultivation trials, ultimately selecting 13 standout varieties combining disease resistance, high yields, drought tolerance, and excellent flavor.

These were classified as the "1974/1975 CBD-Resistant Selections" — the numeric series so familiar in recent years. Current varieties like 74110, 74158, and 74112 belong to it: the "74/75" prefix marks the year of collection, and the three trailing digits are the variety number.

FrontStreet Coffee's Sidamo Santa Veni 74158

FrontStreet Coffee's Sidamo Santa Veni comes from the Santa Veni processing station under DWD Company, made from the 74158 variety and a 96-hour anaerobic natural process. Brewed, it shows subtle fermented wine aromas over citrus, berry, and tropical fruit, with a rich body and a winey aftertaste.

FrontStreet Coffee Recommendation

If this lot whets your appetite for Ethiopian coffee, the washed Yirgacheffe is the classic first step: from the cool, misty southern highlands where thousands of coffee varieties thrive, it delivers clear jasmine florals and bright citrus acidity — a light, elegant, tea-like cup, like a clean lemon tea. For more depth, the washed Guodingding Cooperative lot (independent since 2012 with some 300 member farmers) offers citrus, lemon, and refined white florals, while the natural Red Cherry lot — dried whole for two weeks down to 12% moisture, then machine-hulled and hand-sorted — brings peach, cocoa, honey, and lemon.

And if you're intrigued by JARC varieties specifically, try FrontStreet Coffee's Sidamo Hamasho 74158 from the Hamasho processing station, a regular on Ethiopian green-coffee competition winner lists. The small-beaned 74158 is intensely floral and fruity: perfume lemon, strawberry, and star fruit on the nose, with vivid strawberry, star fruit, and green grape sweetness unfolding into gentle florals.