Expiration & Storage Tips
When does caster sugar expire?
Caster sugar, when stored properly, can last indefinitely. This is because sugar is considered a stable dry good. When unopened, as long as it's kept in a cool and dry environment, the sugar will remain usable for years. If the package has been opened, simply make sure to tightly reseal it after each use, and continue to store it in a cool and dry place. If you've chosen to freeze caster sugar which is not commonly done but still possible, be sure to use a freezer-safe container and the sugar can last indefinitely without changing texture or taste. Before use, allow it to reach room temperature and give it a quick stir to fluff it up.
How do you tell if caster sugar is bad?
If caster sugar has gone bad, it's often evident by the presence of insects such as ants, or other pests which often are attracted to sweets. The sugar might also clump together if it has absorbed moisture. While clumps can be broken apart and the sugar is still technically safe to consume, it may be more difficult to work with in recipes. In severe cases of moisture exposure, the sugar might even have mold, in which case it should be discarded immediately.
Tips for storing caster sugar to extend shelf life
• Store caster sugar in a cool and dry place to prevent clumping due to moisture absorption.
• Tightly seal the packaging or container after each use to prolong the quality and shelf life of the sugar.
• Consider investing in airtight containers for storage. This not only keeps the sugar fresh, but also prevents insects or pests from getting into the sugar.
• If you live in a particularly humid environment, try placing a few grains of rice in the sugar container. Rice is excellent for absorbing moisture and can help keep your sugar dry and clump-free.
• Remember to always use dry utensils when handling sugar, as even a small amount of moisture can cause clumping.