To prepare rock candy, first we mix the sugar with water and make the syrup, then heat it in pots similar to cauldron. Then the impurities are taken to remove the contamination from syrup. Then, the syrup is heated until you get high-density syrup. Then the syrup is poured into a special container to form its crystals. After forming the crystals around the sticks; rock candy lollipops are ready to be packed.