The classic Indonesian method. Parchment is removed while still wet, creating an earthy, savory, full-bodied profile.

Giling Basah (Indonesian: 'wet hulling') is a unique processing method that developed in Indonesia — primarily in Sumatra and Sulawesi — in response to the region's humid climate. Instead of waiting for the bean to fully dry while wrapped in parchment, Indonesian farmers remove the parchment at high moisture content (~30-50%, three times the standard).
The process: cherries are harvested, depulped, briefly fermented (a day or two) and then partially dried to 30-50% moisture. At this stage the parchment is removed — and the exposed green bean continues drying to stable moisture (10-12%).
This method saves precious time in a climate where unpredictable rains can ruin entire batches. But it leaves a distinctive signature on the cup: an earthy profile, tobacco, spices, wood, dark chocolate, rich heavy body, low acidity. It's the recognizable signature of Sumatran coffee around the world — any specialty buyer who tastes it once never confuses it.
The quality merit of this method is debated. Some of modern specialty appreciates the uniqueness; others prefer the cleanliness of classic washed. What's not debatable: this is part of Indonesia's cultural heritage.