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Can you still eat white sugar after its expiration date?

Dec 09, 2025 Source: Cainiu Health
Dr. Huang Yuhong
Introduction
In general, it is not recommended to consume white sugar after its expiration date. Pay attention to the production date and shelf life when purchasing, and opt for smaller packages to avoid long-term storage. After opening, tightly seal the package and store it in a cool, dry place to prevent moisture absorption and spoilage. If the sugar develops an unusual odor, changes color, or forms severe clumps, do not consume it even if it is still within the expiration date.

In general, it is not recommended to consume white sugar after its expiration date. The detailed explanation is as follows:

Even if there are no obvious changes in appearance, expired white sugar may harbor microorganisms invisible to the naked eye. These microorganisms can break down sugar and produce harmful substances, which may irritate the gastrointestinal tract and cause discomfort such as nausea and diarrhea after consumption. Some white sugar may also absorb moisture and form clumps, creating favorable conditions for bacterial growth, further reducing its safety for consumption. Therefore, it is not advisable to eat expired sugar.

When purchasing, always check the production date and shelf life, and opt for smaller packages to avoid long-term storage. After opening, tightly seal the package and store it in a cool, dry place to prevent moisture absorption and spoilage. If you notice any off odors, discoloration, or severe clumping—even before the expiration date—you should stop using the sugar immediately. Always use a clean, dry spoon when handling sugar to avoid introducing moisture and contaminating the remaining product.

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