- How long does granulated white sugar last? The precise answer depends to a large extent on storage conditions - store granulated sugar in a cool, dry area.
To maximize the shelf life of granulated white sugar, keep tightly sealed after opening.
How long does granulated white sugar last at room temperature? When properly stored and kept free from contaminants, granulated white sugar has an indefinite shelf life.
To further extend the shelf life of granulated white sugar and to prevent it 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