All About Granulated sugar
Your complete guide to granulated sugar - discover how to store it properly, identify when it's gone bad, and find the best substitutes for your recipes.
How Long Does Granulated sugar Last?
Storage times and freshness tips for granulated sugar in different conditions.
Safety first: This guide provides general information. When in doubt, throw it out! Trust your senses and err on the side of caution. If something smells, looks, or tastes off, don't consume it.
Pantry / Room TemperaturePractically indefinite (many years), if kept dry and free from contaminants.
Signs of Spoilage
Significant hardening or caking (due to moisture absorption), presence of pests (e.g., ants, weevils), mold growth (rare, indicates severe moisture/contamination), or a noticeable off-odor (if it has absorbed smells from its environment).
How to Check
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Visual Inspection: Look for any signs of mold (discoloration, fuzzy patches), insect activity (small bugs, larvae, webbing), or foreign debris. If it's a solid block that can't be broken apart, it's absorbed too much moisture.
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Texture Check: Feel the sugar. It should be free-flowing or easily broken apart if slightly caked. If it's rock-hard and cannot be broken, it's likely absorbed too much moisture and will be difficult to use.
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Smell Test: It should have no discernible odor. If it smells musty, sour, or like chemicals, it may have absorbed odors from its environment or be contaminated. If no visual, texture, or smell issues, it's generally safe to use.
Storage Tips
The primary concern for granulated sugar is moisture, which causes it to clump and harden, making it less usable. While hardened sugar isn't 'spoiled' in a dangerous way, it's inconvenient. Always store in an airtight container (e.g., a sealed plastic container, glass jar with a tight lid) to prevent moisture absorption, pest entry, and absorption of ambient odors. Avoid storing near heat sources (like ovens or stovetops) or in areas with high humidity (like above a dishwasher).