Hello, I'm a food science enthusiast with a passion for understanding the shelf life of various ingredients, including sugar. When it comes to sugar, it's important to note that it doesn't exactly "go bad" in the traditional sense, but it can lose quality over time.

White sugar is one of the most stable and non-perishable sweeteners. If it's stored in a cool, dry place in an airtight container, white sugar can last nearly forever. However, it can absorb moisture from the air and clump together. Brown sugar, which contains some molasses, can harden and lose its moist, appealing texture over time, typically within a few months if not stored properly.

Honey is another form of sugar that has a very long shelf life. Archaeologists have even found pots of honey in ancient Egyptian tombs that are over 3,000 years old and still perfectly edible. However, honey can granulate or crystallize when stored for long periods, which is a physical change rather than spoilage.

Maple syrup, like honey, doesn't spoil if kept in a sealed container and stored in a cool, dark place. It can last for several years.开封后，如果储存得当，也可以持续数月。

In summary, while sugar doesn't spoil in the way that bacteria- or fungus-based foods do, it can degrade in quality. The key to maintaining its quality is proper storage.

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Although of best quality within 2 years, brown sugar lasts indefinitely and can even be restored if it becomes hard. The shelf life of brown sugar depends on the best before date and how the brown sugar is stored.read more >>