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Horizon Insight News

Does confectioners sugar ever go bad?

Author

Matthew Barrera

Updated on February 24, 2026

Technically, sugar never spoils. While it’s recommended that granulated sugar be discarded after two years, chances are it will still serve its baking purpose even beyond that. The same guidelines apply to brown sugar and confectioner’s or powdered sugar.Click to see full answer. Subsequently, one may also ask, does powdered sugar really go bad?Granulated sugar will keep indefinitely, confectioners’ sugar about 2 years, and brown sugar about 18 months.Subsequently, question is, how do you store sugar? Always store granulated sugar in a covered container in a cool, dry area.” White sugar can be purchased in No. 10 cans or buckets for long-term storage. Brown sugar stores well in original bags as purchased from the grocery store, if stored in a cool, dry place. Keeping this in consideration, what happens when flour expires? Most packaged flours have expiration dates — also called best-by dates — printed on the bag to indicate how long they’ll stay fresh. The best way to determine whether your flour is safe is to smell it. While fresh flour has a neutral odor, bad flour smells off — it can be stale, musty, or almost sour.What is powdered sugar made of?Powdered sugar, also called confectioners’ sugar or icing sugar, is a finely ground sugar produced by milling granulated sugar into a powdered state. It usually contains a small amount of anti-caking agent to prevent clumping and improve flow.