1 Answer. These spots are called internal black spot and are essentially bruising that occurs from the potatoes lying against each other for an extended period of time. 1/4. And if a potato has become noticeably shrunken, mushy, wrinkled, has severe greening, or has developed long sprouts, those are telltale signs to toss it. Okay, I get it: Baking a sweet potato in the oven can take 45 minutes to an hour, or a mere 5 minutes in the microwave. If it helps, I never peel my sweet potatoes and I'm pretty careless so I've accidentally missed and eaten small moldy spots a few times, and have never been harmed aside from an awful taste. These spots do not indicate spoilage, and you can simply remove them before cooking. Some people call such potatoes spongy, but the proper term to use is pithy. Thank you all for your words of potato reassurance! Last but not least, if you notice that there is anything wrong with the sweet potato that wasn’t described above, get rid of it. Cure the sweet potatoes before storing them and store the roots at 55-60 F. (13-16 C.). Dirty sweet potatoes = good sweet potatoes.) Old sweet potatoes tend to develop holes Similarly, small brown or black spots on your sweet potato do not necessarily indicate that it has spoiled. Join 6,464 readers in helping fund MetaFilter. Wouldn't consider this at all a problem after the knife cut the mold off. The spots are spread out on the surface, almost completely covering some of the potatoes. When it comes to mold spots, if there is a small patch of mold on the potato, it doesn’t mean the vegetable’s time is up. With a small spot of mold on cantaloupe, you can just cut around it, leaving half an inch of extra space to be safe. If the rest of it is not soft or gross, I wouldn’t give it a second thought. While pithy sweet potatoes are safe to eat, their quality, and therefore taste, is inferior. If you are interested in any of these topics, read on. Ask MetaFilter is a question and answer site that covers nearly any question on earth, where members help each other solve problems. What are these spots on my sweet potato vine? Relevance. Using the microwave to cook sweet potatoes. And try to do surgery on the one least-moldy Potato? Having lost moisture, they’re apt to rot. vegetablemdonline.ppath.cornell.edu/factsheets/Potato_BlkDot.htm I was peeling some the other day and some … Last but not least, cooked sweet potatoes. Unlike russet potatoes, sweet potatoes (especially garnet yams) do not turn brown or lose texture on exposure to air. Ya good! 1 decade ago. When it comes to cut sweet potatoes, they probably can last even a week or so in the fridge if stored properly. By Brierley Wright, M.S., R.D. Because solanine is also produced in higher concentrations around the eyes, or sprouts, of a potato, they sho Devining at harvest helps to destroy crowns. You can remove the spots, and cook and enjoy the rest of the sweet potato. They're winter hardy as far north as USDA Zone 8. Fortunately enough, we got you covered. Do you use or toss moldy food items? Unlike other causes of white spots in sweet potatoes, mites are easy to control. I know I must appear frightened by sweet potatoes but this really freaked me out: I cut into this sweet potato and a few seconds later, these crazy white spots appeared. After cutting the potatoes transfer them into an airtight container filled with water and put into the veggie drawer in your fridge. The same thing goes for baked sweet potatoes – they have to be refrigerated. So even if you had actually eaten any, I don't think the mold is necessarily toxic to the degree that you're thinking (though I still do not recommend eating the moldy parts). Is there hope. Cold makes them hard inside and may alter the taste a bit. If a potato has just a few small green spots, you can cut them out or peel the potato. Mold and mildew has set in and to me, no matter how much you dig it out, it's still gross and has infected the natural starches/sugars in your potato. The clay pot also seems to have mold or something? In this article, we go through storage methods, shelf life, signs of spoilage and even freezing sweet potatoes. You can remove the spots, and cook and enjoy the rest of the sweet potato. Additionally, if you ever spot mold on cooked potatoes, you should dispose of them immediately. Sometimes it's because the potato was damaged in harvesting or storage, allowing mold spores or bacteria to enter. Preventing Mold on a Sweet Potato Plant. Close • Posted by 21 minutes ago. Growths from the “eyes” of the sweet potato are the first sign that the quality is beginning to deteriorate. It is not a sign of spoilage, and the sweet potato still edible at this point. Hot temperature causes tiny holes inside the sweet potatoes to form. Answer Save. Sep 14 # 3 of 4. The potatoes are still safe to eat, just cut the spots away. The more they get, the better they do. If the temperature is lower than room temperature, they can last even up to a month. As long as the area with the moldy spot is easy to cut off and takes up only a small portion of the potato, the food is still salvageable. Give them some time (like 20 – 30 minutes) to cool off before chucking them into the fridge. If it helps, I never peel my sweet potatoes and I'm pretty careless so I've accidentally missed and eaten small moldy spots a few times, and have never been harmed aside from an awful taste. If you're going to be holding them for a couple days, then drop them … Is it worth it to open the bag? I’m pretty careful about food prep and have cut the end off of a moldy sweet potato, scrubbed/peeled, cooked, and eaten it many times. Similarly, small brown or black spots on your sweet potato do not necessarily indicate that it has spoiled. White spots on sweet potato leaves can be the result of the feeding activities of spider mites. Mold spots also mean spoilage, but like with all other veggies, if the spots are small, you can just cut them off with some excess and use the rest. Precisely the same rules apply to prepared dishes with sweet potatoes like casseroles. Alternatively, you can wrap the vegetables in kitchen paper or aluminum foil, and then transfer into the fridge. All posts copyright their original authors. Posted By: phoenyxstarr . How To Grow Sweet potato vines like heat and sun. I'm baking sweet potatoes and i went to flip them and some of them had spots that almost looked like mold. Do not eat sweet potatoes once they have begun to shrivel, and certainly not past this point. If you notice sprouts on your sweet potato, just cut off the growths and cook as soon as possible. Another storage option for sweet potatoes is freezing. Favorite Answer. Follow. The only problem is that the microwave cooks the potato unevenly, remaining hard and lumpy in some spots while overly soft and mushy in others. Usually, the bad spot will separate on its own. They lived in a bag together for two months. The exception is mold spots; if a sweet potato has begun to mold, throw it away. Also, why, cruel world. Give them moist, fertile, well-drained soil. Any mold is suspicious. Email Save Comment 2. The spots are not indented, rotting or scaly. … Comments (2) aulani. The veggies should be fine there for a few days, but it’s best to use them within 24 hours. What to do about mold on bathroom ceiling. Brierley's interest in nutrition and food come together in her position as nutrition editor at EatingWell. Sweet potatoes (Ipomoea batatas) provide ornamental beauty and edible root tubers, depending on the variety. Small, roundish, dark brown spots are the first signs of black rot. 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