Indonesia Natural Anaerobic Espresso – Abdul Thohari

About This Coffee

From the slopes of Mount Kerinci, Abdul Aziz Thohari and the Rukun Saudara Cooperative craft expressive coffees that showcase Sumatra’s volcanic soil and highland climate. Abdul Aziz Thohari is the driving force behind the Rukun Saudara Cooperative in Kerinci, Sumatra. Founded in 2017, the cooperative brings together 50 smallholders farming at 1400–1700 m a.s.l. on the volcanic slopes of Mount Kerinci, Indonesia’s highest volcano. The cool climate and fertile soils create ideal conditions for producing expressive, fruit-forward coffees. What began as a modest 10×5 metre drying area has grown into an 800 square metre facility where farmers now process their own cherries with care and precision. This lot is crafted through anaerobic natural processing: ripe cherries are sealed in tanks to ferment, then dried slowly under the Sumatran sun. The method enhances tropical fruit complexity and creamy texture while keeping the cup clean and structured. Mount Kerinci’s dramatic volcanic history has left its soils rich and alive, shaping one of the most distinctive coffee landscapes in Indonesia. The result is a cup that reflects both the passion of its producers and the uniqueness of its origin.