Side by side comparison
Sumatra and Rwanda
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Sensory Contrast at a Glance
Sweetness
Sumatra●●
Rwanda●●●●
Sparkle & Acidity
Sumatra●
Rwanda●●●●
Body & Weight
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Rwanda●●●
Sensory Radar Overlay
- Sumatra
- Rwanda
| 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. |