During the 19th century, coffee cultivation expanded to other parts of Indonesia from Java. Each region developed its unique coffee varieties, influenced by the local geography, climate, and cultivation methods.
"Sumatra coffee" is another well-known Indonesian coffee example, and that is grown on the island of Sumatra, it is renowned for its full-bodied, earthy flavor with hints of chocolate and a low acidity level. Sumatra coffee is often processed using the unique "wet-hulling" method, which gives it a distinct character.
Sumatra coffee beans in Indonesia: https://amzn.to/47jmq6c
In the early 20th century, Indonesia faced challenges due to the economic and political disruptions caused by World War II and the struggle for independence. However, coffee production continued to be a vital part of the country's economy.