Iced coffee made with Sumatra beans typically has a bold, full-bodied character with low acidity, earthy and herbal undertones (sometimes cedar or tobacco notes), a syrupy, heavy mouthfeel, and hints of dark chocolate or dried fruit. When served over ice, the boldness holds up well without getting washed out or thin—it stays rich and smooth rather than sharp or bright the way a higher-acid bean (like an Ethiopian) might taste when iced.