Shelf Life of
Sweet Potatoes

How Long Do Sweet Potatoes Last?

How long do sweet potatoes last?

How Long Do Sweet Potatoes Last?

Shelf Life of Sweet Potatoes

The shelf life of sweet potatoes depends on a variety of factors, such as the best by date, the preparation method and how they were stored. Sweet potatoes and yams not only have a creamy sweet texture but they are also high in fiber and beta-carotene. They are almost always on the Thanksgiving menu.

Sweet potatoes are very versatile and often confused with yams. Sweet potatoes and yams are from two completely different flowering plants (while white potatoes come from a root plant), but are often labeled as each other. The yam is slightly softer (it contains more water) and has an orange colored flesh while the sweet potato is a whiter (or more yellowish) color both inside and out. Pictured are sweet potatoes.

So, just how long are sweet potatoes good forhow long do sweet potatoes last? After purchase from the store and proper storage, the shelf life is approximately …

(Unopened) Pantry Fridge Freezer
Past Date  Past Date  Past Date
Fresh Sweet Potatoes last for 3-5 Weeks 2-3 Months
Canned Sweet Potatoes last for 1 Year
Sweet Potato Fries last for 2-3 Days 4-6 months
Frozen Sweet Potatoes last for 5-7 Days 6-8 Months
Fresh Yams last for 3-5 Weeks 2-3 Months
Canned Yams last for 1 Year
Dry Instant Sweet Potatoes last for 6-12 Months
(Opened) Pantry Fridge Freezer
Canned Sweet Potatoes or Yams last for 7 Days
Cooked Sweet Potatoes last for 7 Days 4-6 Months
Cooked Yams last for 7 Days 4-6 Months





Of course, all foods last for a shorter period of time if they are not stored properly. But remember, sweet potatoes, like a lot of other vegetables, may have a best by date or a better before date but not an expiration date. Because of this distinction, you may safely use sweet potatoes to compliment your favorite meals even after a best before date has lapsed.

How to tell if sweet potatoes are bad, rotten or spoiled?

Practicing proper hygiene and food safety discipline will help prevent food borne illness. Although not a perfect test, your senses are usually the most reliable instruments to tell if your sweet potatoes have gone bad.

Some common traits of bad sweet potatoes are discoloration and growths through the skin. They will begin to get soft and wet (water will leak out) and then turn brown and/or black. If part of the sweet potato goes bad, the whole potato should be thrown out as the flavor is affected.

There are, of course, certain health risks associated with spoiled sweet potatoes, so always remember to practice food safety and enjoy your sweet potatoes prior to their eat by date.

How to store sweet potatoes to extend their shelf life?

Proper food storage is the key to extending the expiration date of food.
You can help sweet potatoes keep fresh longer by storing them in your pantry or in the refrigerator for a slightly longer life.

Once prepared, sweet potatoes should be stored in a tightly closed container to keep out moisture and other contaminants.

Raw sweet potatoes do not freeze well, but sweet potato fries are flash frozen and made for the freezer.
Some benefits of proper food storage include eating healthier, cutting food costs and helping the environment by avoiding waste.

Interesting Facts About Sweet Potatoes:

  • Sweet potato season is from October thru January.
  • 80% of the world’s sweet potatoes are grown in Asia.

  • What to do with excess potatoes?

    If you have too many sweet potatoes, use your them in one of these ways before they go bad:

  • Make sweet potato fries. Peel & cut the sweet potatoes then mix with a little olive oil and a sprinkle of any or all of these: sugar, salt, cinnamon, nutmeg or pumpkin pie spice. Place on lightly sprayed pan in a hot 450° oven for about 20 minutes.

  • Peel, cut and boil your sweet potatoes until soft. Combine 1/2C brown sugar, 1/4C coconut, 1/4C finely chopped pecans, 3T melted butter and a dash of cinnamon and layer this mixture on top of the smashed sweet potatoes in a buttered casserole dish.

  • How long are sweet potatoes good for when prepared in a dish?

    How long do sweet potatoes last? That depends. How long do marshmallows last? In general, sweet potatoes last only as long as the quickest expiring ingredient in the dish. To find out how long those other ingredients are good for, please visit the Dairy, Drinks, Fruits, Grains, Proteins, Vegetables and Other sections of Eat By Date or use the search below!

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    What are our shelf life resources?

    Our how long are sweet potatoes good for and how long are yams good for content incorporates research from multiple resources, including the United States Department of Agriculture and the United States Food & Drug Administration. In addition, we scoured the web for informative articles and reports related to food safety, food storage and the shelf life of sweet potatoes.

    *An important note about expiration dates …

    Although the shelf life of sweet potatoes information on Eat By Date is generally reliable, please remember that individual cases will vary and that our advice should only be taken as an opinion. So, how long will food last? Let’s find out!