Uses of Rock Candy In the 1800s, Rock Candy was used as a cough and cold remedy. In Thailand it was used as currency. In Mexico it was used to make sugar skulls. In Germany and Hungary it was used to sweeten tea and coffee. China used it in cooking, medicine, tea, soups, Cantonese sweets and liqueurs. In the Netherlands it was baked into bread called Fryske Sukerbale. In India it was used together with anise seeds as a mouth freshener. Anise is the aromatic seed of the anise plant. In India, it is also known as kalakandu (kal means rock and kandu means candy). In Tamil it is called Kalkandi and is used in cooking. In some areas it was added to whiskey to give it medicinal value. In China it was used for people addicted to heroin or opium. It was used to combat withdrawal symptoms by ingesting sugar crystals into the bloodstream. YOU. The Science of Sugar Each grain of sugar is made up of a small crystal made up of an ordered arrangement of molecules called sucrose. Sucrose is a disaccharide made up of glucose and fructose. Sucrose is produced by the chemical reaction between two simple sugars called glucose and