Rock sugar is a natural crystallized sugar extracted from sugarcane or beetroot, and comes in transparent or brown crystals. What is rock sugar? It is pure, completely unrefined sugar. Its sweetness is close to white sugar, but its taste is milder. It dissolves slowly compared to regular sugar. Common uses: It is used to sweeten tea and herbal drinks. It is included in some traditional recipes and desserts. Sometimes used for folk medicinal purposes with herbs. Types: White rock sugar. Brown rock sugar (darker and stronger in taste). Common (folk) benefits: Relieves cough when dissolved with lemon or herbs. Gentle on the stomach compared to refined sugar.