How long does Sugar (brown) last after opening?

Once opened, Sugar (brown) keeps about 18–24 months in the pantry. Unopened, it keeps about Indefinitely.

Source: USDA FoodKeeper v128 · Category: Baking & cooking

How long Sugar (brown) keeps

Only situations with a published figure are listed. A blank isn't “forever” — it means no reliable number is published for it.

Storage

• Store at: Cool, dry pantry, sealed — refrigerating after opening is optional and mainly preserves quality
• Refrigerate after opening: Optional — mainly for quality, not safety
• Tip: Sugar never spoils, but for best quality use within 2 years of opening.

How to tell if Sugar (brown) has gone bad

• A rancid, paint-like, or musty smell
• Clumping, or moisture in something that should be dry
• Insects, webbing, or larvae in the package
• Faded colour or a lost aroma

These are the general spoilage signs for baking & cooking — never taste something to test it. When in doubt, throw it out.

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