gm caster sugar

Caster sugar, also known as castor sugar or superfine sugar, is a finely granulated white crystalline sweetener derived from sugar cane or sugar beets. The crystals are smaller and more uniform than standard granulated sugar, created through a specialized milling and drying process. This refined sugar is chemically identical to regular granulated sugar (sucrose) but its fine particle size allows for faster dissolution and more even distribution in batters, doughs, and liquids. Caster sugar is widely produced and distributed internationally, with "GM" referring to genetically modified sugar beets used in some industrial production, though organic and non-GM varieties are also available.

The ingredient dissolves rapidly in cold liquids and creams more efficiently with butter, making it the preferred sweetener in baking applications where smooth texture and quick incorporation are essential.

Caster sugar is a staple in baking, particularly valued for creaming with butter in cakes, cookies, and pastries, where its fine granules incorporate air more effectively than coarser sugars. It is the standard sweetener for meringues, pavlovas, and whipped egg-white preparations because it dissolves instantly without graininess. In British and Commonwealth cuisines, caster sugar is the default sweetener for sponge cakes, shortbreads, and other delicate baked goods. It is also commonly used in cocktails, cold beverages, and fruit preparations where rapid dissolution without sedimentation is desired. Many professional bakers and pastry chefs prefer caster sugar for its consistency and reliability in achieving uniform texture and crumb structure.

Caster sugar can be used as a direct substitute for granulated sugar in most applications, though slightly less volume may be needed due to its finer particle structure.