Published June 2026 · By Willkin Green Coffee (PT Global Wills Sejahtera)
Gayo Arabica from the Central Aceh highlands (1,200–1,700 m elevation) is one of Indonesia's most internationally traded specialty coffees. It is available in four processing methods — washed, natural, honey, and wet-hulled (Giling Basah) — but washed and natural are the two most commonly requested by specialty roasters worldwide. This guide compares both for B2B buyers.
Cherry is pulped mechanically, then fermented in water tanks for 24–48 hours to remove mucilage. The green bean is dried on raised beds or patios to 11–12.5% moisture. Result is a clean, transparent cup that highlights the terroir and varietal character of the bean.
Whole cherry is dried on raised beds for 3–5 weeks without removing the fruit skin. Sugars from the fruit pulp infuse the bean during drying. Requires careful monitoring to prevent fermentation defects. Labor-intensive but produces highly sought-after cup profiles.
| Attribute | Gayo Washed | Gayo Natural |
|---|---|---|
| SCA score range | 84–87 | 85–89 (top lots) |
| Typical FOB price (Grade 1) | USD 3.80–4.50/kg | USD 4.50–6.00/kg |
| Availability (volume) | High — year-round stock | Moderate — seasonal lots |
| Flavor complexity | Clean, terroir-driven | Fruit-forward, wine-like |
| Acidity | Bright citric/malic | Lower perceived, jammy |
| Body | Medium | Full to heavy |
| Batch consistency | High | Moderate |
| Best roast level | Light to medium-light | Light to medium |
| Recommended for | Specialty filter, pour-over, V60 | Espresso, single origin, competition lots |
| Certification availability | Organic available | Organic available (fewer lots) |
| MOQ (Willkin) | 1 bag (60kg) for sample; 1 MT for commercial | 1 bag (60kg) for sample; 1 MT for commercial |
| Method | Description | SCA Range | Best For |
|---|---|---|---|
| Honey | Pulped but mucilage partially left on; dried on raised beds | 83–87 | Balance of washed clarity + natural sweetness |
| Wet-Hulled (Giling Basah) | Traditional Sumatran method; hulled at high moisture (35–40%), redried | 78–83 | Indonesian domestic market, dark espresso blends |
| Buyer Type | Recommended Method | Reason |
|---|---|---|
| Third-wave specialty roaster | Washed or Natural | Both score well; washed for consistency, natural for premium positioning |
| Competition / micro-lot buyer | Natural (top lots) | Highest SCA ceiling; unique flavor differentiation |
| Filter-forward café chain | Washed Grade 1 | Consistent cup, scalable supply |
| Espresso blend manufacturer | Washed or Wet-Hulled | Washed for specialty blend; wet-hulled for body and cost |
| Private label / supermarket | Washed Grade 1 or 2 | Volume availability, lower cost, acceptable flavor |
| EU organic roaster | Washed Organic Certified | Wider organic certification availability in washed lots |
| Month | Activity | Impact on Buying |
|---|---|---|
| Oct – Jan | Main harvest (Gayo) | Fresh crop; book early for best lots |
| Feb – Apr | Processing + export peak | Widest selection of processing methods |
| May – Sep | Off-season / secondary crop | Limited fresh stock; naturals often unavailable |