White granulated sugar is obtained from sugarcane, sugar beet or raw sugar by juicing, filtering, removing impurities, clarifying, vacuum concentrating and boiling crystals, dehoneying, sugar washing and drying.

White granulated sugar (white sugar) contains more than 95% of the crystals of sucrose, lower water content than the crystal granules of the lanugo sugar is larger, after refining and bleaching and made, is a commonly used condiment, but also the most commonly used sweeteners.

Production:

The sugar clarification technology of white sugar is divided into three types: sulfite, carbonate, and two-step method.

The two-step clarification technology, the main clarifying agent is lime, carbon dioxide, activated carbon, etc., the clarification effect is better than other processes, the pigment removal rate is higher, the color residue of white granulated sugar products is lower, so you can produce low-color-value, high-quality white granulated sugar products; however, the production process is longer, the energy consumption is large, and the cost of sugar production is higher.

Sulfite clarification technology, the main clarifying agent is lime, sulfur dioxide, phosphoric acid, etc., the production process is relatively short, less investment in equipment, lower energy consumption; but the clarification effect is poor, the pigment removal rate is low, the pigment residue in sugar products is high, resulting in high color value of sugar products produced by this method.

Carbonated sugar process, the main clarifying agent is lime, carbon dioxide, sulfur dioxide, etc., the clarification effect is between the two-step method and the sulfite method, so the quality of the sugar products obtained by this method is better than the sulfite method, and inferior to the two-step method.

Reference: Baidu Encyclopedia - White Sugar