Short answer
Brown sugar contains added molasses, giving it a moist texture and caramel flavor, while white sugar is fully refined with molasses removed, resulting in dry, neutral-tasting crystals. This difference affects both taste and how each sugar behaves in baking. 1 2
Both are chiefly sucrose sweeteners. Many US brown sugars are refined sugar blended with molasses, while white granulated sugar lacks that molasses character.
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At a glance
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| Question | brown sugar | white sugar |
|---|---|---|
| Molasses content | added back in | removed |
| Baking texture | adds moisture, chewy | dry, crisp results |
What each thing is
Brown sugar. Brown sugar in US retail commonly consists of sucrose with molasses retained or blended back, giving it darker color and a more pronounced flavor. Processing and moisture vary among products. 1 2
White sugar. White sugar refers to fully refined granulated sugar from cane or beet, with nearly all molasses removed, yielding dry, free-flowing crystals with a neutral sweetness and no caramel flavor. 1 2
Key differences
Molasses character is the everyday distinction: brown sugar retains or has molasses added after refining, while white granulated sugar has little or none. This changes color, flavor, moisture, and baking behavior. 1 2
How to tell them apart
Brown sugar can be identified by its moist, clumping texture and caramel aroma, while white sugar is dry and free-flowing. However, some specialty brown sugars are processed to be free-flowing, so texture alone is not always definitive. 1
Where they overlap
Both brown and white sugars are made from cane or beet and can be used interchangeably in some recipes, though results may differ in color, flavor, and texture. Both are available in various crystal sizes for different culinary uses. 1 2
Edge cases
Some brown sugars, such as free-flowing or granulated brown sugar, are processed to reduce moisture and clumping, making them behave more like white sugar in handling, though they retain molasses flavor. 1
Why the distinction exists
Molasses is responsible for brown sugar’s color, moisture, and flavor. In US retail, brown sugar is typically produced by adding molasses to refined white sugar, while white sugar is the result of removing molasses during refining. 1 2
Common misconceptions
A common misconception is that brown sugar is simply less refined than white sugar. In the US, most brown sugar is actually white sugar with molasses added back, not a less processed product. 2
Examples
A US baker making cookies finds brown sugar in the baking aisle, labeled as light or dark. Its moist, clumpy texture contrasts with the dry, free-flowing white sugar nearby. Each will yield different cookie textures and flavors. 1 2
Sources
Sources checked October 3, 2026.
- Sugar Association — Types of sugar. White and brown sugar composition and processing.
- King Arthur Baking — What can I substitute for brown sugar?. Molasses, composition and baking behavior.