Sumatran beans are lower in acidity because of how they’re processed and because they’re generally dark roast, which naturally has less acid. It’s also easier on tooth enamel, which can be damaged over time if you drink a lot of coffee. If you tend to get stomach aches or headaches from coffee, this low-acid variety could be a good choice for you. Sumatran coffee is especially sought-after for its low level of acidity. These complex beans, which are grown in volcanic soil, produce full-bodied, smooth coffee with hints of chocolate and a small amount of acidity. Sumatran coffee is famous for its uniquely earthy and herbal flavors. Sampling Volcanica’s excellent Sumatra Mandheling coffee beans.

The majority of exported beans are Arabica beans, which are grown at higher altitudes and boast smoother, less bitter flavor. But don’t worry: you’re unlikely to end up buying Robusta beans, as most are consumed in-country or processed into instant coffee. These highly caffeinated but more bitter beans are not considered as high-quality as Arabica beans, which make up the other 15% of Indonesia’s crops. They are known as the most unique, interesting beans that are grown in Sumatra.Ībout 85% of Indonesia’s coffee beans are of the Robusta variety. Mandheling beans are named after a local tribe, the Mandailing people. You’ve probably heard of the other major coffee region, Java, which is so well-known that people use its name interchangeably with coffee. Sumatra is the sixth-largest island in the world and one of the country’s most famous coffee-producing regions. Did you know that Indonesia is the world’s fourth-largest coffee producer? The country, which is made up of over 17,000 islands, currently produces 8% of the world’s coffee.

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