Sidikalang is a city and district immediately to the west of Lake Toba, the massive crater lake in North Sumatra. While it is near Lintong, Dolok Sanggul and other growing areas we source lots from, Sidikalang coffees have a different flavor profile, more like a classic Mandheling. Part of this is due to micro-climates and influences from the Lake, part is due to the cultivar. Sidikalang is in the Dairi district, and the altitude for coffee ranges from 1200 meters to 1500 meters in altitude. The area has it's own special long bean type, a form of Typica. Sidikalang is found less and less frequently in Sumatra and other parts of Indonesia. Much of the Typica was lost in the late 1880s, when Coffee Leaf Rust swept through Indonesia. However, both the Bergendal and Sidikalang varieties of Typica can still be found, especially at higher altitudes and in remote areas. The area around Sidikalang is still partly planted in it's eponymous cultivar, as well as the newer Ateng type. I can't say exactly how much is this old Typica type but a good portion certainly is. Anyway, we bought this for the nice cup character and sent it for custom decaffeination. I am really, really happy with the post-decaf results, and it just shows that if you start with better quality green coffee, the decaf results are markedly better.