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How Do You Know When a Potato is Bad?

If you have ever wondered how to tell if a potato is bad, then you have come to the right place. Below you’ll find a list of the most common signs of a bad potato. This is important information to know if you are looking to eat one of these nutritious vegetables.


When potatoes are stored in the produce aisle, you can’t always tell when they are spoiled. The smell is one indication of spoilage, but there are other signs, like a shriveled skin and green sprouts.

Potatoes that are shriveled are not good to eat. They can cause stomach upset and nervous system problems. You should also discard rotten potatoes, since they may contain mold or a bitter, moldy odor.

Green potatoes can be dangerous to eat. They contain high levels of toxins called glycoalkaloids, which are toxic to humans. If you’re concerned about eating the potatoes, you can remove the sprouts before cooking.

Sprouts, on the other hand, can be safe to eat. As long as you don’t eat too many, you should be fine.

Sprouts are part of the normal growth cycle of a potato plant. However, they can become unsafe to eat if you don’t know how to handle them. Luckily, there are ways to prevent them.

Some of the easiest ways to do this are by storing potatoes in a cool, dark place. Another option is to use paper bags to filter out light. Other ways are to peel them, using a small paring knife.

Sprouts of potatoes may have higher levels of toxins than the tubers. This is because potatoes are bred to have lower levels of glycoalkaloid. While a trace amount of these toxins will not have an effect on you, they can be very harmful when ingested in large quantities.

Green tinge

When buying potatoes, it is important to check if they have green coloring. If you find green spots on your potato, you can cut them off or throw them away.

Greening is caused by the production of chlorophyll. This is a naturally occurring compound in plants. Chlorophyll is not toxic. It is responsible for giving potatoes their color.

The best way to avoid getting a sick potato is to store them in a cool, dark place. Potatoes will turn green when exposed to sunlight or other bright light. A basement or cool, dark room is the best storage place.

Potatoes should be stored at 45o to 50o Fahrenheit. Stored at these temperatures for 3 to 5 weeks should give you good quality potatoes.

If you have noticed your potatoes turning green, it is important to alert the manager. If the greening is extensive, you should discard them.

Solanine, a toxin found in the potato plant, is another cause of the greening. Toxins such as solanine are poisonous and can make you drowsy. They also cause nausea and diarrhea. In extreme cases, they can lead to paralysis.

Solanine is only a small part of what causes the greening. Other processes inside the potato can make it turn green.

Storing the right type of potatoes will prevent the greening. Make sure to wash and dry the potatoes before storing them. You can also refrigerate them to help them last longer.

Wrinkly skin

Are you wondering how to tell if a potato has wrinkled skin? It is possible, and there is a reason behind the wrinkled look. Wrinkled potatoes are still edible, but are less nutritious. This is because the wrinkles are caused by a process called dehydration.

Dehydration is a process where starches in a potato are converted into sugars. The sugars are what give a potato its flavor. If you have been eating a potato with a wrinkly skin, you are not likely to like it.

If you’re not sure if your potato has a wrinkly skin, you can try to pierce the skin with a paring knife. If you are lucky, you may be able to float it in salted water.

Some people will use potato skin as a face cleanser. You can also use a potato as a facial mask. Obviously, you need to make sure that it’s not too old. Potatoes can last a long time in the right conditions, but when they begin to sag, you need to discard them.

Potatoes with a wrinkly skin are more likely to contain bacteria. This can lead to food poisoning and even nausea. They can also cause a plethora of other symptoms. Having to deal with a wrinkly skin is not the best way to start your day.

The good news is, potatoes can actually be healthy. As long as you store them correctly, they can outlast a lot of other vegetables.

Moldy or bruised appearance

If you find moldy or bruised appearance of potato, it is important to discard it right away. Moldy potatoes are often soft to the touch and have a rotten smell. You may also notice dark spots on the surface.

The moldy or bruised appearance of potato is caused by a number of factors. Potatoes that are not stacked or stored in a dry and cool area are more likely to develop this problem. It is a result of moisture accumulation in the tuber.

A good way to check if a potato is spoilt is to look for sprouts. Small sprouts are OK to eat, but if you see large ones, it is best to toss them. This is because they contain a toxic substance called solanine. Solanine is the same chemical that causes bitter taste in vegetables.

Another thing to look for is sunken brown lesions. These can extend several centimeters into the tuber. Often the lesion will be accompanied by pale or necrotic brown tissue surrounding the collapsed pale tissue.

There are many diseases that affect the tuber. They may cause dark spots on the skin or leave a white bruise. Each disease has its own symptoms, so be sure to check the tuber for any signs.

Other signs of spoilage include foul smelling potato dishes. Raw potatoes have a nutty and earthy smell. Cooked potatoes are different. Their smell is still present even after cooking.


Potatoes are part of the nightshade family. They have a starchy, earthy smell. A good raw potato will be firm to the touch, with a smooth skin.

Although potatoes can be healthy to eat, they can still go bad. If they aren’t stored correctly, mold can grow on them and make them dangerous.

The simplest way to determine if a potato is bad is to check its skin. Potatoes’ skin ages just like human skin. It can become wrinkled, sagging, or discolored. This is not a good sign.

Another way to determine if a potato is rotten is to take a look at its interior. If you see dark spots, limpness, or a solid or bitter smell, it is time to toss the potatoes.

In addition to its sagging skin, a potato might also be leaking liquid. A spoiled potato is unfit for cooking and can be hazardous. You should also discard a potato if it contains sprouts. However, these are not necessarily bad.

Some people may think that the most important thing about a potato is its taste. But in reality, the most important part of a potato is its texture. Use a fork to test the consistency of the flesh. When cooked, you can expect a potato to stay fresh for a couple of days in the fridge.

If a potato’s skin is wrinkly or discolored, it is time to cut it up. However, if you find a small area of a potato that is green and looks healthy, you can use it.


If you are looking to store your potatoes, you should be aware of the various factors that contribute to their longevity. These include proper storage and air circulation. Keeping your potatoes in a cool, dry place is ideal. You can also keep them in the pantry for up to a month. However, you should not keep them in the refrigerator.

One of the most common questions about potatoes is whether they really do last for a long time. This is because the tuber itself keeps growing, even after harvest. So if you don’t want to waste money on a new potato, you should take advantage of the ones you have left on your counter.

Potatoes are a popular food worldwide. They are durable, versatile, and last a long time. But they can also go bad quite quickly. That is why it is crucial to know when a potato is spoiled.

Some of the most noticeable signs of a potato’s age are green spots, moldy smells, and bad skin. To avoid these, you should try to store your potatoes in a dark, dry place. Keep your container open, so that air can circulate.

If you are unsure of the best way to store your potatoes, you should consult a specialist. Several experts recommend storing them in a cool, dry place.

In addition to keeping your potatoes in a cool, dry place, you should also keep them away from light. It’s not unusual for a potato to turn green when exposed to sunlight.



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