Now we enjoy fries topped with cinnamon sugar or cayenne pepper. When I heard of the many health benefits, I began trying fresh sweet potatoes with my husband. Unfortunately, once sweet potatoes begin to go bad, you cannot just cut away the spoiled part since the decay affects the flavor of the entire potato. How to Store Sweet Potatoes for Winter. The area should also be well ventilated and the best places for storage would be the basement or the cellar. Sweet Potato Fries with Blue Cheese I used to avoid sweet potatoes as a child, mostly because they came out of a can. This is the best way to store them for longer lengths of time. Strive for a temperature range of 55 – 60 degrees F, and definitely do not store sweet potatoes in your refrigerator, as they are susceptible to cold injury. For final storing, keep the sweet potatoes in a cool and dark place with an average temperature of 15 degrees Celsius (59 degrees Fahrenheit). Harvesting Sweet Potatoes. Sweet potatoes can be harvested any time tubers have formed (start checking late summer). Turns out I was wrong! When you need to save time, buying pre-cut sweet potatoes is an easy option. Sweet potatoes will keep 3-5 months under most circumstances and there are so many uses for them: casseroles, pies, mashed, french fries, baked, fried, boiled, breakfast casseroles, soups,…oh my the list goes on and on. Once cured, sweet potatoes will store for months in a cool and dry location. Sweet potato vines also produce well when trellised, because vines scaling the ground will try to put roots in everywhere, which produces a gazillion teensy little potatoes as opposed to several big ones per vine.. Somewhat less hardy than their white cousins, sweet potatoes generally do not store well, except under ideal conditions, and bruised ones rapidly deteriorate. Refrigeration changes the structure of the cell walls of sweet potatoes, making them harder to break down. The exact answer to that question depends to a large extent on storage conditions - refrigerate sweet potatoes (including mashed and baked sweet potatoes) within two hours of cooking. I used to store sweet potatoes in the refrigerator, due to lack of counter space and with the thinking that refrigeration would keep them fresh for a longer period of time. To maximize the shelf life of cooked sweet potatoes for safety and quality, refrigerate the sweet potatoes in shallow airtight containers or resealable plastic bags. How about you? If sweet potatoes don't last very long in your house, you can also do as I do, and place them in a bowl in a cool spot on your kitchen counter, away from windows. Sweet Potato Storage . Instead, keep your sweet potatoes in a basket in a kitchen cabinet or basement. As a result, refrigerated sweet potatoes can remain hard in the middle and take longer to cook. We've also discovered how awesome they are with blue cheese. Ever since I was a little girl digging sweet potatoes has been one of my favorite garden chores. However, you can also prep them ahead of time and store them in the refrigerator.