How To Store and Preserve Potatoes Long Term ( The Perfect Way)


Storing potatoes long-term is an art form. It has a set sequence to follow to ensure that the tubers remain viable and fresh during storage. Many factors can affect the quality of the potatoes during storage, and this post will cover them in detail.

Potatoes should be cured for a few hours, then be stored at 60˚F for the first 10 days, then Lower to 36˚F. Good airflow and high humidity are important. Periodically check for disease and rot. With these conditions, they can be stored for up to 6 months.

Potatoes are one of the most consumed foods worldwide, yet they are susceptible to decay due to pests and disease. It is essential to store potatoes properly. There is a 5 step process which is:-

  1. Checking for disease or damage.
  2. Curing the potato tubers.
  3. Packaging the potatoes in suitable containers.
  4. Placing packaged potatoes into perfect conditions.
  5. Periodically checking for signs of disease and decay.

What Happens if Potatoes Are Not Stored Properly?

Potatoes can rot if potatoes are not stored and preserved correctly.
Potatoes can withstand various temperatures and conditions. It means if you do not store them, they can have a drastic effect on their quality.

To maintain potatoes high-quality, gardeners need to store them in a room with humidity of less than 30%. The desired temperature for storing potatoes is between 10-12°C or 50-55°F. If the temperature is higher than this range, the potatoes will start to sprout.

These are the things that can happen if you do not store and preserve potatoes:

  • They can rot if they are not refrigerated or stored.
  • They can go spoil when left out in the open.
  • Gardeners should not keep them near onions or other strong-smelling foods since this will cause them to spoil more quickly and rot more easily.

Checking for Disease or Damage.

Any potatoes that have a disease or are damaged will not store properly. These must be removed and never stored with your main crop.

Trying to store these tubers is a false economy as they will decay over a period of weeks and affect the entire crop of potatoes you are trying to store.

You can eat these potatoes immediately, but I would suggest any with the disease get disposed of. Damaged ones are fine to eat. The damage is usually only caused by a fork or spade cutting them during harvest. If you grow potatoes in containers as I do, then you can avoid this. To learn more about how I grow them, check this article out.\

Curing Methods for Potatoes

It is necessary to cure potatoes to avoid toxic production compounds such as glycine, which can develop during storage. Curing is the process of allowing the skins to dry completely. It hardens the skin causing the tuber to be protected from both temperature fluctuations and from rotting.

It typically takes around 48 hours of curing until the potatoes are ready for storage. Skipping this step will drastically reduce the time the potatoes will stay in storage before they awaken and sprout.

Picture of harvested potatoes

Packaging the Potatoes in Suitable Containers.

There are many ways to store potatoes, and there are a few rules you need to follow. In this section, I want to talk about the way you package them. Traditional ways to package potatoes is in a 25kg or 55lb sack made from either hessian or paper.

I have used this method, but you could use another method to place a layer of straw into a cardboard box and then add potatoes and then another layer of straw until the box is full. The issue with this is that it is time-consuming and can use materials that have additional costs.

Slatted trays are another fantastic way to package potatoes. Potatoes are placed in them on a single layer and then covered over with Hessian sacks. This system works extremely well as it provides excellent ventilation to prevent the tubers from sweating.

Placing Packaged Potatoes into Perfect Conditions.

Now the crop is packaged in whatever style you decide; it is now time to place them in the appropriate conditions. For this, we need somewhere dark and frost-free.

The temperature should be around 36˚F or around 3-5˚C; it should be a constant temperature as it tricks the tuners into thinking that winter is still active. The temps should not be allowed to go any lower for long periods as this can cause the tubers to freeze and damage their cells.

Place the tubers on shelving, not on a concrete floor, as the floor can reduce the temps by around 5 degrees

Periodically checking for signs of disease and decay.

During the months that the potatoes are in storage, It is important to check each tuber for signs of rot. Catching this early can stop the spread to other tubers and causing loss of the entire stored crop.

Open the sack or box, lift the hessian off the tubers and check each one visually. You will notice any rot without having to touch the tubers.

You can pack them back until the next check, when you are sure there is no rot.

The Differences Between Storing and Preserving Potatoes

People often don’t know the difference between storing and preserving potatoes. Storing potatoes is about keeping them in a cool, dark place until they are needed. They can be stored for up to 6 months before they start to deteriorate in quality.

What is potato storage? When storing potatoes, it is essential to keep them in dry and cool locations like the root cellar or basement. Gardeners should not store potatoes near onions, garlic, shallots, or other vegetables because they emit sulfurous gases that make potatoes turn green and cause scabbing on the skin when exposed to light.

What is potato preservation? Preserving potatoes is a necessary process that will ensure that they do not spoil quickly. A way to do this is by washing and drying the potatoes before placing them in sealed containers.

Preserving potatoes is about storing them in a way that will keep them fresh for an extended time (usually 1-2 years). Gardeners can preserve potatoes by using cellars, root cellars, or just storage. The preservation of potatoes is a process that will keep all of their nutrients and minerals intact.

Storing potatoes is a process of preserving them for future use. The goal of storing potatoes is to keep them as fresh as possible for as long as possible. You can store potatoes at temperatures between 40-50 degrees Fahrenheit and in a dark, well-ventilated space.

Preserving potatoes is different from storing them because the goal is to make the food last indefinitely. Preserving involves using many techniques to lengthen the shelf life of food that people can’t eat immediately-like pickling, canning, salting, and freezing.

Can Cold Temperatures Preserve Potatoes Correctly?

Cold temperatures slow down the decomposition process of potatoes until they become rotten. When this happens, there is nothing that you can do to save them. It means that potatoes should not be left out on a counter or in a truck for long periods when it’s hot outside.

Also, when storing potatoes, make sure to use plastic bags or containers with tight lids. It will help protect them from pests like mice and bugs, which could cause potato blight damage to the skin of the potatoes and introduce bacteria into them.

What Is the Ideal Way to Store Potatoes in the Pantry or a Cool, Dark Area?

Whether to store potatoes in the pantry or a cool, dark area can depend on the type of potato. Some of them have a higher sugar content and better taste when stored in the pantry. But some of them taste better when stored in a cool, dark place.
Some people like to store them in the fridge, while others preserve them in their basement or garage.

Arguably, the best way to store potatoes is in a dark, cool area. Humidity and light are both damaging to potatoes and cause them to spoil quicker than other vegetables.
Potatoes are typically best stored in dry conditions and at relatively high temperatures-around 45 degrees Fahrenheit. That’s because potatoes have low moisture content, so they can get dried out if not stored properly.

Tips to Ensure a Longer Shelf Life for Potatoes

Potatoes are rich in vitamins, minerals, water, and carbs. They are inexpensive and easy to grow. There are many tips to help your potatoes last longer after harvest.
If possible, store them in a root cellar or cellar area that should be below 50 degrees Fahrenheit with moist but not wet conditions.

If you have exposed your potatoes to moisture, then it’s best to let them dry out for a while before storing them again to avoid developing rot.
Even if you store your potatoes correctly, you may still have some that start spoiling because of skin damage.

Why Potato Preservation is Necessary for Any Gardener

Gardeners need to store their potatoes correctly because they cannot plant them again if the potatoes sprout or rot. If gardeners want their potatoes to grow well in the spring, they should start storing them properly during the fall season.

Which Methods Are Best For Storing Potatoes in Winter?

There are ways to store potatoes in winter. Gardeners can store potatoes in the ground outdoors, in a shed or outbuilding, under straw, or indoors.

Before deciding, you need to consider the climate you live, and how you plan to store them for the winter. If you live in an area with warm winters and cold summertime, you should not leave your potatoes outside because they will rot from exposure to insects during the warmer months; this would not happen if you store them indoors.

Other Things Gardeners Should Know About Storing and Preserving Potatoes To Last Longer

Cut Off Any Sprouts or Roots

Potatoes can last up to a month when stored properly. The trick to preventing your potatoes from getting potato blight is to cut off the sprouts or roots before storing them in a dark, cool place.

Place Potatoes in a Ventilated Container

Store potatoes in a ventilated container to reduce moisture and humidity levels. It will increase the shelf life of the potatoes.

Cure for 2–3 weeks

Preserving potatoes for two to three weeks is not as difficult as it sounds. However, one will have to be dedicated and careful about it.

Conclusion

So as you see, it is possible to store potatoes from the time of harvest right up until the time of planting the following year’s crop. Follow the advice in this article, and you will have potatoes all winter long as your staple food source.

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Tony O'Neill

I am Tony O'Neill, A full-time firefighter, and professional gardener. I have spent most of my life gardening. From the age of 7 until the present day at 46. My goal is to use my love and knowledge of gardening to support you and to simplify the gardening process so you are more productive

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