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FOOD STORAGE — HOW LONG CAN YOU KEEP...

SUGAR, CONFECTIONERS' / POWDERED / ICING — UNOPENED OR OPENED PACKAGE

Pantry Refrigerator
Blue Arrow Green Arrow Keeps indefinitely
Tips
  • The precise answer to the question “How long does powdered sugar last?” depends to a large extent on storage conditions — when properly stored and kept free from contaminants, powdered sugar (also known as confectioners’ sugar) has an indefinite shelf life.
  • To maximize the shelf life of powdered sugar, store in a cool dry area and keep tightly sealed after opening.
  • To prevent powdered sugar from hardening once opened, place sugar in a covered airtight container or cover original package with a heavy-duty plastic bag and seal.

Sources: For details about data sources used for food storage information, please click here.

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