Does Sugar Expire?
Granulated white sugar does not expire and can last indefinitely when stored properly. Sugar is a natural preservative with no moisture for bacteria to grow. However, sugar can absorb odors, harden into clumps, or attract pests if stored improperly.
Key Takeaways
- White granulated sugar has an indefinite shelf life because its chemical composition does not support microbial growth.
- Brown sugar hardens faster due to molasses content; store with a terracotta sugar saver or bread slice to maintain moisture.
- Powdered sugar can last indefinitely but clumps more easily than granulated.
Explanation
White granulated sugar has an indefinite shelf life because its chemical composition does not support microbial growth. The lack of moisture and nutrients means bacteria, mold, and yeast cannot survive in pure sugar. This is why sugar has been used as a preservative for centuries.
While sugar does not spoil, its quality can decline. Sugar easily absorbs moisture and odors from its environment, which can affect taste and cause clumping. Hard sugar is still safe to use - break up clumps or process briefly in a food processor.
Store sugar in an airtight container away from heat, moisture, and strong-smelling foods. The original bag is not ideal for long-term storage. A sealed glass or plastic container in a cool, dry pantry keeps sugar fresh and free-flowing.
Things to Know
- Brown sugar hardens faster due to molasses content; store with a terracotta sugar saver or bread slice to maintain moisture.
- Powdered sugar can last indefinitely but clumps more easily than granulated.
- If sugar smells off, it has absorbed odors and may affect the taste of your baking.