One of the words you may hear when exploring Gayo coffee is giling basah. In English, this usually means wet-hulling. It is a traditional processing approach widely associated with coffee from Sumatra.
What is wet-hulling?
After coffee cherries are picked, their outer fruit is removed. In a typical wet-hulled workflow, coffee is fermented and washed, then partially dried before the protective parchment layer is removed while the beans still contain relatively high moisture. The exposed green beans are then dried further.
This is different from fully washed coffee, where parchment is generally kept on the bean until it is much drier. The exact workflow can differ between producers and lots.
Why does the process matter?
Processing affects how green beans dry and develop. Wet-hulled Sumatran coffees are often associated with a rounded body and distinctive savory, earthy or herbal dimensions. However, flavor cannot be predicted from process alone. Careful sorting, drying and storage are important in every method.
Is all Gayo coffee wet-hulled?
No. Wet-hulling is strongly linked to the region's heritage and geographical-indication specification, but coffee producers also experiment with other processing styles. Always confirm how the particular lot was handled instead of assuming.
Questions to ask a supplier
Ask for the processing method, moisture and defect specifications, sample roast results when available, storage practices and packaging. If you are importing, discuss destination-country requirements and agreed inspection procedures before a shipment.
North Pure Arabica welcomes conversations about buyer requirements. Send an inquiry with the processing style you are looking for.
Further reading: European Commission geographical-indication publication and Gayo Arabica product specification. This article provides general educational information, not a specification or certification for a particular lot.
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