
Castor sugar, also known as superfine sugar or baker's sugar, is granulated white sugar that has been ground to a very fine consistency. This fine texture allows it to dissolve much more quickly than regular granulated sugar. It's prized for its ability to create smooth batters, meringues, and delicate desserts. The fine crystals also prevent a grainy texture, resulting in light and airy baked goods. It looks like a fine white powder, and has a similar taste to regular sugar.
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Castor sugar should be stored in an airtight container in a cool, dry place away from direct sunlight. This will prevent it from clumping and absorbing moisture, which can lead to spoilage. Storing it at room temperature is generally sufficient. Avoid storing near strong-smelling foods, as sugar can absorb odors. With proper storage, castor sugar has a long shelf life.