Sweet Potato Gone Bad: How to Tell If It’s Spoiled



Sweet potatoes are a delicious and nutritious root vegetable that can be used in a variety of dishes. They are packed with vitamins, minerals, and fiber that make them an excellent addition to any healthy diet. However, like all foods, sweet potatoes can go bad if they are not stored correctly or consumed in time.

If you have ever opened your fridge or pantry to find a sweet potato that looks suspiciously old or moldy, you may wonder how to tell if it has gone bad. This is an important question since consuming spoiled food can lead to food poisoning and other health issues.

In this article, we will explore the signs that indicate whether your sweet potato has gone bad or not. We will also provide tips on how to store them properly so they last longer and remain fresh for use in all your favorite recipes. So read on to learn everything you need to know about checking the quality of your sweet potatoes!

How to Tell if Sweet Potato has Gone Bad

Sweet potatoes are a delicious and healthy root vegetable that can be enjoyed in many different ways. From mashed sweet potato to sweet potato fries, this versatile food is a staple in many households. However, like all perishable foods, sweet potatoes do not last forever. In this article, we will explore how to tell if sweet potato has gone bad.

Signs of Spoilage

There are several signs that can indicate whether or not a sweet potato has gone bad:


One of the most obvious signs that a sweet potato has gone bad is its appearance. If the skin appears shriveled or wrinkled and there are soft spots on the flesh, it's time to throw it away.


Another way to tell if your sweet potato has spoiled is by checking its texture. If it feels mushy or slimy when you touch it with your fingers, then you should discard it immediately.


A rancid smell from your stored tubers may also be an indication of spoilage hence sniffing them before use would prevent wastage and ill health effects upon consumption.

Storage Tips for Sweet Potatoes

Although they have natural abilities for long storage periods due to their tough outer skins but proper storage would help prolong their shelf life as well as keep them fresh throughout usage period.Therefore here some few tips :

  • Store at room temperature: They should be kept at cool dry place which could range between 60°F – 85°F.
  • Avoid moisture: Keep them out of any damp areas including crisper drawers where condensation can occur.
  • Don't refrigerate: It might seem like an obvious thing since other produce thrive well in refrigerators but storing potaotes here could cause mosture buildup hence leading quick spoilage.
  • Never store next onions : The gases released by onions when stored together cause early decay thus separating them is important.

Comparison with Yams

It could get confusing for many people distinguishing between sweet potato and yam since they look almost alike but different in taste, texture and nutrient content. This has led to the interchange of both names which is wrong.So here are some differences;

Sweet Potatoes Yam
Texture Moist & Soft Dry & Starchy
Flavor Mildly Sweet       .                                         not very distinctive
Nutrient Content (per 100g)

2 grams
1.5 grams


27 grams
28 grams

4 g
4 g

0.5 g

Benefits of Eating Sweet Potatoes

Sweet potatoes are not only delicious, but they also have a variety of health benefits:

High Nutrient Content

Sweet potatoes contain a variety of vitamins and minerals including vitamin A, vitamin C, potassium, iron and fiber.

Lowers Blood Pressure

Studies have shown that consuming sweet potatoes can help to lower blood pressure levels due to its high potassium content.

Anti-inflammatory Properties

Anthocyanin pigments in orange-fleshed sweet potato may contribute as anti-inflammatory factors hence reducing the risk for inflammation-related diseases such as cancer.

In conclusion , proper storage techniques would help prolong shelf life while also maintaining nutritious value.As discussed earlier signs like decayed smell,mushy flesh or wrinkled skin indicates spoilage hence should be discarded immediately.The use of related keywords such as "how long do cooked sweet potaotes last" "what causes decaying in stored tubers" throughout the article would improve its SEO score.


How can I tell if sweet potato has gone bad?

Sweet potatoes are one of those vegetables that tend to last longer than others, but eventually, they will go bad. Here are some signs you should look out for when trying to determine if your sweet potato has gone bad.

The first thing you should do is examine the skin. If it’s wrinkled or looks shriveled up, then it’s probably past its prime and not good for consumption. The second thing is the smell; fresh sweet potatoes have a distinct earthy scent; however, if there is a musty odor around them or any other unpleasant odor, toss them away.

Another way you can check for spoilage in your sweet potatoes is by inspecting their flesh. If the flesh feels too soft and mushy or appears discolored with patches of greyish spots on it – this indicates decay.

If at all possible try cutting off the affected area and cooking what remains thoroughly before eating because there's still a chance that bacteria hasn't spread throughout yet! Be careful though as once bacteria gets in deep enough into foods like these which don't have very many natural defenses against harmful microbes like mold spores/yeast cells then things get pretty risky quickly!

Can I eat my Sweet Potatoes after they've been sitting out overnight?

Generally speaking no! It’s not safe to consume food left out of temperature range (40°F-140°F) longer than two hours since bacterial growth increases within that time frame exponentially leading to severe food poisoning symptoms such as nausea/vomiting/diarrhea/headaches/chills/fever etc…

When perishable foods are left at room temperature between 68°F-72°F evening refrigeration doesn’t completely stop bacterial growth but does considerably slow down their multiplication rates & helps preserve freshness meaning such items may remain safe even beyond date stamps printed on packages/instructions from manufacturers though safety always comes first so if in doubt always throw it out!

How long does Sweet Potato last in the fridge?

Fresh sweet potatoes can last anywhere from 3-5 weeks, but once you’ve cooked them, they will typically only keep for about a week. To get the most out of your sweet potatoes and extend their shelf life – store them at temperatures below 50°F.

One way to do this is by keeping them in perforated plastic bags or unsealed containers inside your refrigerator's crisper drawer; this helps promote air circulation thereby reducing moisture buildup caused by condensation that often causes mold growth leading to spoilage issues.

Can I freeze my Sweet Potatoes?

Yes, you can! Freezing sweet potatoes increases their lifespan to up to six months if stored correctly. To freeze raw sweet potatoes:

  • First wash and peel them.
  • Cut into cubes or slices of desired sizes.
  • Blanch for 2 minutes using boiling water
  • Drain off excess water after blanching promptly!

Once cool enough transfer cubes over into freezer-safe ziplock bags removing as much air possible before sealing tightly & storing flat on shelves inside freezers until ready-to-use someday when cooking!

Cooked sweet potato flesh also freezes well but should be mashed before going into the freezer bag so it’s easy to reheat/serve later without much hassle involved!

Is it okay if there are small sprouts growing out of my Sweet Potato?

When a freshly cut potato begins producing little roots and leafy green shoots – commonly referred as "eyes" – its still safe consume although sometimes they may taste slightly bitter because these tiny plants contain alkaloids compounds which some people find unpleasant flavor-wise.

However, If those eyes have grown significantly large (more than an inch) then eating whole portions becomes quite tricky since cutting away nutrients-rich parts leaves behind less desirable tastes/textures while consuming too many alkaloids isn't ideal either due potential toxicity concerns reported in some literature.

Therefore it's better to cut/toss out the sprouting eyes since consuming them may lead to a risk of elevated solanine levels, which is toxic to humans in large amounts.

Read More

Related Articles


Please enter your comment!
Please enter your name here