Food Storage - How long can you keep...


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3-4 days
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1-2 months



  • How long does a can of sweet potatoes last once opened? The precise answer depends to a large extent on storage conditions - keep opened sweet potatoes refrigerated and tightly covered.
  • To maximize the shelf life of canned sweet potatoes after opening, refrigerate in covered glass or plastic container.
  • How long do opened canned sweet potatoes last in the refrigerator? Canned sweet potatoes that have been continuously refrigerated will keep for about 3 to 4 days.
  • Are canned sweet potatoes safe to use after the "expiration" date on the package? Yes, provided they have been stored properly, the can or package is undamaged, and there are no signs of spoilage (see below) - commercially canned sweet potatoes will typically carry a "Best By," "Best if Used By," "Best Before", or "Best When Used By" date but this is not a safety date, it is the manufacturer's estimate of how long the sweet potatoes will remain at peak quality.
  • To further extend the shelf life of opened canned sweet potatoes, freeze them: to freeze canned sweet potatoes, place inside covered airtight containers or heavy-duty freezer bags.
  • The texture of canned sweet potatoes will be softer after freezing and thawing; the thawed sweet potatoes will be best suited to cooked dishes, such as sauces, soups and casseroles.
  • How long do canned sweet potatoes last in the freezer? Properly stored, they will maintain best quality for about 2 months, but will remain safe beyond that time.
  • The freezer time shown is for best quality only - sweet potatoes that have been kept constantly frozen at 0°F will keep safe indefinitely.
  • How long do canned sweet potatoes last after being frozen and thawed? Sweet potatoes that have been defrosted in the fridge can be kept for an additional 3 to 4 days in the refrigerator before using; sweet potatoes that were thawed in the microwave or in cold water should be used immediately.
  • How can you tell if opened canned sweet potatoes are bad or spoiled? The best way is to smell and look at the sweet potatoes: if the sweet potatoes develop an off odor, flavor or appearance, or if mold appears, they should be discarded.
  • Discard all sweet potatoes from cans or packages that are leaking, rusting, bulging or severely dented.

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

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