Avery Collins
Breakfast potatoes are a nutritious and versatile staple food, but they can pose health risks if consumed after being stored incorrectly. The shelf life of potatoes depends on several factors, such as the type of potato, the storage temperature, humidity, light exposure, airflow, and whether they are cooked or raw. Storing potatoes in the fridge can extend their shelf life compared to leaving them out, but it may alter their taste, texture, and nutritional profile.
| Characteristics | Values |
|---|---|
| Ideal storage temperature | 45°F to 50°F |
| Effect of humidity | Too much humidity can make potatoes mouldy; too little can make them shrivelled |
| Light conditions | Keep potatoes in the dark; light can make them turn green and bitter |
| Airflow | Good ventilation prevents potatoes from getting damp and rotting |
| Effect of storage with onions | Onions release gases that can make potatoes spoil faster |
| Raw potatoes in the fridge | Not recommended; can cause potatoes to brown, soften, and increase in sugar content |
| Raw potatoes in the freezer | Not recommended; can last up to 10-12 months but can cause potatoes to taste sweeter and discolour when cooked |
| Raw potatoes in the pantry | Recommended; can last up to two months |
| Cooked potatoes in the fridge | Can be stored for several days to a week |
| Cooked potatoes in the freezer | Can be stored for several months to a year |
| Signs of spoilage | Sprouts, soft spots, discoloration, bad smell, wrinkles, mould |
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What You'll Learn
Raw potatoes should not be stored in the fridge
While storing cooked breakfast potatoes in the fridge can keep them fresh for about a week, raw potatoes are best kept outside of the refrigerator. Storing raw potatoes in the fridge can cause the potatoes' starch to convert to sugar, resulting in a sweet taste and discoloration when cooked. This process can also increase the formation of acrylamide, a naturally present compound in plant-based foods, which may increase the risk of cancer when consumed in large quantities.
Instead of refrigerating them, raw potatoes should be stored in a cool, dry, and dark place, like a pantry or closet. The ideal temperature range for storing potatoes is between 43-50°F (roughly 5-10°C). At these temperatures, potatoes can last for up to two months. Storing potatoes in this temperature range helps to prevent sprouting, which is stimulated by light and warmer temperatures.
If you need to store peeled or cut potatoes, they can be kept in a bowl of water in the refrigerator for about 24 hours. Adding a small amount of lemon juice or vinegar to the water can help prevent the potatoes from turning black. However, it's important to note that metal bowls or colanders can cause the potatoes to turn dark prematurely, so it's best to use plastic or glass containers.
While it may be tempting to store raw potatoes in the fridge to extend their shelf life, doing so can alter their taste, texture, and nutritional profile. Therefore, it's best to keep them in a cool, dry, and dark place to maintain their quality and avoid any potential health risks associated with increased acrylamide formation.
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The ideal temperature for storing potatoes is 45°F to 50°F
While storing potatoes in the fridge can increase their shelf life, it can also cause a few issues. The ideal temperature for storing potatoes is 45°F to 50°F. At colder temperatures, potatoes tend to convert starch to sugar, resulting in discolouration and a sweet taste when cooked. This can be avoided by blanching the potatoes before refrigerating them, although this does not prevent the increase in acrylamide formation when the potatoes are cooked.
Storing potatoes in the fridge can also cause them to brown, soften, and discolour. The ideal temperature range of 45°F to 50°F helps to prevent these issues, keeping potatoes fresh and tasty for longer. At this temperature, potatoes can last for several weeks to a few months, depending on the type of potato and the specific storage conditions.
It is important to note that potatoes should not be washed before storing, as the excess moisture can lead to mould growth. Good airflow is crucial to prevent moisture buildup and mould, and storing potatoes in a mesh bag or basket is recommended. Light should also be avoided, as it causes potatoes to turn green and bitter.
While the fridge can be used to store potatoes, a cool pantry or cellar is often a better option, maintaining the ideal temperature range of 45°F to 50°F. In these conditions, potatoes can last for up to two months. However, it is important to regularly check stored potatoes and toss any that are going bad to prevent spoilage.
By following these storage guidelines, you can ensure that your potatoes remain fresh and nutritious for as long as possible, minimising waste and maximising the benefits of this versatile staple food.
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Cooked potatoes can be stored in the fridge for a few days
Storing cooked potatoes in the fridge is a great way to make them last longer. However, there are a few things to keep in mind to ensure they stay fresh and safe to eat.
Firstly, let the cooked potatoes cool down before placing them in the fridge. This is important because putting hot potatoes in the fridge can affect the temperature of the appliance and the food stored in it. Once cooled, store the potatoes in an airtight container or wrap them tightly in foil or plastic wrap.
Secondly, the ideal temperature for storing potatoes in the fridge is between 45°F and 50°F (or 3°C and 10°C). At these temperatures, cooked potatoes can last for several days to about a week. Storing them at colder temperatures can cause the starch in the potatoes to convert to sugar, resulting in a sweet taste and discolouration when cooked.
It's also important to keep potatoes away from ethylene gas-producing foods like onions, as these can cause them to spoil faster. Additionally, regularly check your potatoes for any signs of spoilage, such as mould, soft spots, discolouration, or a bad smell. If you notice any of these signs, discard the potatoes to prevent foodborne illnesses.
Finally, while cooked potatoes can be stored in the fridge for a few days, freezing is an option if you need to keep them for longer. Frozen cooked potatoes can last for several months, but their quality may be reduced.
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Potatoes stored in the fridge may turn sweet and change colour
Storing breakfast potatoes in the fridge can make them last for about a week. However, it is not recommended to store raw potatoes in the fridge or freezer. This is because storing potatoes at colder temperatures lower than 50°F causes the potato's starch to convert to sugar. This results in a sweeter taste and discolouration when cooked. This process is known as "cold-induced sweetening".
Potatoes are best stored in a cool, dry, and dark place, such as a pantry or cupboard. They should be kept away from all light sources to prevent skin greening and stored in a paper or mesh bag to allow them to breathe. If stored correctly, potatoes can last up to two months.
It is important to note that potatoes should not be washed before storage as the excess moisture can foster mould growth. Instead, they should be washed just before cooking. Additionally, potatoes that have been cut or cooked should be refrigerated and consumed within a few days to prevent food poisoning.
If you do choose to store potatoes in the fridge, it is recommended to blanch them before refrigerating or freezing to prevent them from turning sweet and discoloured. Blanching will also reduce the formation of acrylamide, a potentially harmful compound, during cooking.
To summarise, while storing breakfast potatoes in the fridge can extend their shelf life by a few days, it is generally not recommended due to the potential for sweetening and discolouration. Proper storage in a cool, dry, and dark place is the best way to ensure potatoes last as long as possible while maintaining their quality.
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Storing potatoes in the fridge can increase the formation of acrylamide
Breakfast potatoes can last for about a week in the fridge. However, storing potatoes in the refrigerator or freezer before cooking can increase the formation of acrylamide. Acrylamide is a chemical substance formed when starchy foods, such as potatoes, are cooked at high temperatures (above 120°C). It is a naturally occurring compound in plant-based foods and is not deliberately added to foods. Instead, it is a natural by-product of the cooking process.
The Maillard reaction, which occurs during high-temperature cooking, is responsible for the formation of acrylamide. This reaction involves the combination of water, sugar, and amino acids, resulting in the characteristic flavour, texture, colour, and smell of the food. Longer cooking times and higher temperatures promote the formation of more acrylamide.
The consumption of large quantities of acrylamide has potential health risks. Laboratory tests have shown that acrylamide in the diet causes cancer in animals, and scientists agree that it may also have carcinogenic effects in humans. The EFSA's Scientific Committee has employed a 'margin of exposure' approach to assess the health concerns associated with acrylamide consumption. Their findings indicate a concern for public health, with margins ranging between 300 for an average adult and 120 for toddlers.
To minimise the formation of acrylamide when storing and cooking potatoes, it is recommended to avoid refrigerating raw potatoes and instead store them in a cool, dark place, such as a pantry. Before cooking, soak potato slices in water for 15 to 30 minutes, then drain and blot them dry. Additionally, limit the cooking time and aim for lightly browned potatoes rather than dark brown.
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Frequently asked questions
Cooked breakfast potatoes can last for about a week in the fridge. However, it is not recommended to store raw potatoes in the fridge as it can cause them to brown, soften, and increase in sugar content, affecting their taste and texture.
Potatoes are best stored in a cool, dark, and dry place with good airflow, such as a pantry or cellar. They should be kept in a mesh bag or basket to allow for ventilation and should not be washed before storing to avoid moisture buildup and mold.
Potatoes that have gone bad will typically have a musty and moldy odor, soft spots, discoloration, wrinkles, or sprouts. It is important to check for these signs before consuming potatoes to avoid any potential health risks associated with eating spoiled potatoes.
