white sugar

White sugar, chemically known as sucrose, is a disaccharide carbohydrate extracted primarily from sugar cane (Saccharum officinarum) and sugar beets (Beta vulgaris subsp. vulgaris). It is the most common form of refined sugar used in culinary applications worldwide. White sugar is produced through a multi-stage process: raw cane or beet juice is extracted, clarified, concentrated through evaporation, crystallized, and refined to remove impurities and molasses, resulting in pure white crystals. The refined product is nearly 100% sucrose by weight and appears as small, granular crystals with a slightly sweet aroma and neutral appearance.

The predominant white sugar varieties include granulated sugar (the standard culinary form with uniform crystal size), superfine sugar (finely milled for baking), and occasionally powdered sugar (ground with cornstarch for dusting). White sugar dissolves readily in liquids and caramelizes at approximately 320°F (160°C), making it fundamental to both savory and sweet preparations.

White sugar serves as the primary sweetener across global cuisines, functioning in applications ranging from beverages and desserts to marinades and preserves. It is essential in baking, where it contributes to texture, browning, and structure through caramelization and the Maillard reaction. Beyond sweetening, sugar provides bulk in batters, aids in moisture retention, and promotes fermentation in yeasted breads. In savory cooking, minute quantities balance acidity in sauces and dressings, while larger amounts appear in Asian stir-fries, glazes, and cured preparations. It is also used to create caramel, candies, syrups, and preserved fruits, and serves as a preservative agent in jams and pickling liquids.