How to preserve sweet potatoes

In this brief guide, we are going to answer the question “How to preserve sweet potatoes ?”, and discuss the different methods used to preserve sweet potatoes.

How to preserve sweet potatoes

Sweet potatoes are preserved by :

  • Freezing: Sweet potatoes can be frozen after they are steamed, baked or roasted.
  • Canning: Sweet potatoes can be baked and then canned.
  • Dehydrating: Sweet potatoes can be baked or blanched and then dehydrated.

How to preserve raw sweet potatoes 

Raw sweet potatoes have a long shelf-life. Under proper storage conditions, they can be preserved for up to six months.

Raw sweet potatoes must be kept in a cool, dark and dry place. They must never be refrigerated or frozen before cooking. Refrigerating raw sweet potatoes will activate their sugars and cause faster spoilage. The best household area to store sweet potatoes is in the basement or cellar.

Sweet potatoes must never be washed before storage. Washing will introduce moisture which can cause microbial growth and faster spoilage. If the sweet potatoes have a lot of soil and dirt on them, it is best to clean them with a dry cloth or brush before storage.

Sweet potatoes must also be stored away from other vegetables as they are sensitive to ethylene. Ethylene may cause them to sprout and rot faster.

How to preserve cooked sweet potatoes

Sweet potatoes are very versatile and can be used in a large number of dishes ranging from sweet to savoury. Cooked sweet potatoes can be preserved by freezing. 

Sweet potatoes can be cooked by either steaming, boiling, baking or roasting. Sweet potatoes can also be deep-fried or baked to produce sweet potato chips.

How to preserve baked sweet potatoes

Baked sweet potatoes can be frozen for up to 12 months. They must be allowed to cool down completely and then foil wrapped before freezing.

How to preserve steamed sweet potatoes

Steamed sweet potatoes can be frozen for up to 12 months. Peeled, steamed sweet potatoes must be allowed to cool down completely and then stored in a freezer-proof container. Flash freezing is preferred when preserving steamed sweet potatoes.

How to preserve roasted and mashed sweet potatoes 

Roasted, mashed potatoes can be frozen for up to 6 months. Puree of mashed potatoes must be stored in an air-tight container or a ziplock bag.

How to preserve sweet potatoes by canning

Cooked sweet potatoes can be preserved by pressure canning for up to 12 months. The canned sweet potatoes must be stored at 50 and 70 °F in a dark place.

How to preserve sweet potatoes by dehydration

Sweet potatoes can be dehydrated and stored in the proper conditions for about 12 months.

Sweet potatoes can be dehydrated in slices, pureed or in shredded form.

Dehydrated sweet potatoes can be consumed as a healthy snack. They can also be rehydrated by soaking in water and then used in dishes such as mashed potatoes and soup.

Dehydrating pureed sweet potato

Sweet potatoes are baked and mashed to form a puree. Water and seasoning can be added to make the puree but fats and oils must not be added.

The puree is spread at ⅛  to ¼ inches of thickness on the dehydrating tray. The puree is then dehydrated at 58°C for 6 to 8 hours.

Dehydrating sliced or diced sweet potatoes

Sweet potatoes are baked, cooled and then peeled. After peeling, the potatoes are cut into slices or diced. Cut potatoes are then placed evenly in a dehydrator tray and dehydrated at 52°C until they are crispy. 

Sliced sweet potatoes will dehydrate in 8-10 hours while diced sweet potatoes will take about 10-12 hours.

Dehydrating shredded sweet potatoes

Sweet potatoes are washed, peeled and shredded using a box grater. The shredded sweet potatoes are then blanched, cooled and drained. Next, they are spread evenly on a dehydrator tray and dehydrated at  52°C  until the pieces are tough.

How to use preserved sweet potatoes 

Preserved sweet potatoes can be used in numerous dishes. 

Cooked and frozen sweet potatoes can be thawed and then used as a substitute for fresh sweet potatoes in any recipe such as soups, mashed potatoes, filling etc.

Dehydrated sweet potatoes can be eaten by themselves as a snack or they can be rehydrated and then substituted for fresh sweet potatoes.

Both frozen and dehydrated sweet potatoes can be used in baking.  They can be used for baking muffins, cakes and even cookies

Conclusion

In this brief guide, we answered the question “How to preserve sweet potatoes?” and discussed the different methods used to preserve sweet potatoes such as freezing, canning and dehydrating. We also looked at the best storage conditions for raw potatoes and discussed how to use preserved sweet potatoes.

If you have any questions or comments please let us know.

References

https://www.sustainablemarketfarming.com/tag/sweet-potatoes-are-sensitive-to-ethylene/

Hi, I am Charlotte, I love cooking and in my previous life, I was a chef. I bring some of my experience to the recipes on this hub and answer your food questions.