Side by side comparison

Sumatra and Rwanda

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First originSecond origin

The short answer

Sumatra tastes softer and less sweet; Rwanda is brighter and sweeter.

Sensory Contrast at a Glance

Sweetness

Sumatra●●

Rwanda●●●●

Sparkle & Acidity

Sumatra●

Rwanda●●●●

Body & Weight

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Rwanda●●●

Sensory Radar Overlay

Sumatra
Rwanda

Relative to this catalog, not SCA scores.

Metric	Sumatra	Rwanda
Summary	Heavy, low-acid, and earthy: cedar, cocoa, and forest-floor notes. Pick this only if you want a deep, savory cup rather than fruit.	A washed Bourbon cup: floral, citrus, red fruit, and brown sugar. High East African slopes, not a Kenyan blackcurrant bomb.
Tasting notes	cedar, dark cocoa, fresh pipe tobacco, damp forest, licorice	floral, citrus, red fruit, brown sugar, tea-like sweetness
Who grows it	Smallholders selling parchment to collectors and mills in Aceh and North Sumatra.	Hundreds of thousands of smallholders delivering cherry to washing stations.
Producers in detail	Lots are often blended at a mill that buys from many gardens. Traceable Gayo or Lintong bags may name a cooperative. The farm-life image is raking drying seed on concrete, not a Kenyan washing channel. Sorting by hand after hulling is still part of the cup quality.	The picture is 400,000 smallholdings, not large estates. Families pick cherry and deliver it to a washing station. The station - not a single farm name - is the producer credit on most specialty bags. That post-1994 mill network is why washed Rwanda exists as a shopper category.
Terroir	Tropical rainforest humidity, volcanic lakes (Toba) and highland basins (Gayo). Shade, clay, and wet harvest weather make slow, fully dry naturals risky - wet-hulling is terroir as method. Cedar and cocoa are the landscape in the cup.	Volcanic highlands and garden plots rather than estate rows. Banana and coffee often share the same slope. Cool elevation plus fully washed Bourbon is the terroir: florals and citrus, a medium body, brown-sugar sweetness. It is not a wet-hulled or natural-default origin.
Process	Often wet-hulled (giling basah), typical of Sumatra.	Specialty lots are fully washed at a washing station.
Process in detail	Cherry is pulped, briefly fermented, and dried only until the parchment is still damp. Hulling that wet parchment - giling basah - exposes a swollen seed that finishes drying on patios in humid air. The result is low acidity, heavy body, and cedar-herb notes. It is not a washed Ethiopia that went wrong; it is a different process chosen for a wet climate.	Cherry goes to a washing station, is pulped, fermented, washed, and dried - often on raised beds. That fully washed path is the specialty default. It is how smallholders turned garden cherry into an export grade after stations were rebuilt.
Brew tag	Filter or espresso	Filter
Bag cue	Look for Sumatra or Mandheling, earthy, low acid, dark cocoa. Gayo if Aceh is named.	Look for Rwanda, washed, Bourbon or red fruit - floral citrus, not Kenya blackcurrant.
Cafe order	A Sumatra or Mandheling, the earthy low-acid one - French press or espresso, not a light pour-over.	A washed Rwanda, light roast, black - floral, citrus, red fruit.
Milk	Black, Dairy, Oat	Black
Species	arabica	arabica
Altitude (light)	Mid-highland - often 1,100–1,600m	Highland specialty lots - typically 1,400–2,000m
Altitude (detail)	Gayo highlands in Aceh and the Lintong / Mandheling areas around Lake Toba commonly sit 1,200–1,600m. That is respectable altitude, but wet-hulling and humidity mute the sparkle you would expect from the same elevation in Kenya.	Specialty lots typically grow about 1,400–2,000m on volcanic highlands. That is a trade band, not a census of every farm. Cool nights at that height are why washed Bourbon can taste floral and citrus rather than heavy cocoa.
Varieties	Tim Tim, Ateng, Onan Ganjang, Gayo selections (when labeled)	Red Bourbon (when labeled)
Harvest	Long, staggered harvests; many regions pick across much of the year, with peaks after rains.	Main harvest roughly March–July.
Brew rec	French press or espresso. A paper pour-over can taste too thin. Medium-dark roast is traditional; very light roast can taste vegetal.	Pour-over, light roast, black. Plenty of water so citrus stays sweet. Do not treat it as a Kenya AA substitute - the fruit is redder and the body is lighter.