mashed potatoes tips

How Long Do Mashed Potatoes Last In The Fridge 2024 – Properly Stored Food

How long do potatoes last in the fridge, let’s talk about it. The Potatoes are one of many people’s favorite even if children used to eat potatoes but the thing is when you buy a sack of potatoes and keep it in your kitchen and you don’t know how to store it in the fridge to keep mashed potatoes long last.

Potatoes are one of the largest crop vegetables in the United States and around four consumed crops throughout the world. Potatoes are frequently thought of as a comfort food splendidly mashed with butter and cream or fried in vegetable oil. But may lead to weight gain, heart disease, according to the Harvard School Of Public Health.

Prepared or cooked mashed potatoes stay fresh in the fridge for up to three-four days.
in this article, we will tell you how long do mashed potatoes last in the refrigerator. Including

  • How to spot a badly mashed potato?
  • How to tell if cooked mashed potatoes go bad?
  • The Scent of Spoilage.
  • Best way to freeze mashed potatoes.
  • Best way to reheat mashed potatoes.
  • Advice before your mashed potatoes goes spoiled.

If mashed potatoes cooked it will last from 3 to 4 days in the fridge and almost 10 to 12 months in the freezer depending on the kind of potatoes.

The below list will give you a clear understanding of shelf lives for different kinds of potatoes(Mashed potatoes, Baked potatoes, Raw potatoes, Boiled potatoes, etc.

Fresh Potatoes at a temperature near 50°/10°C will last from 2 to 3 months. And at room temperature, it will last almost 1 to 2 weeks depends on what kind of potatoes are.

  • Mashed potatoes(Cooked and refrigerated) will last 3 to 4 days.
  • Raw potatoes(cut and stored in water) will last almost 24 hrs.
  • Boiled(Cooked and refrigerated) will last 3-4 days.
  • Frozen potatoes(including mashed potatoes. boiled potatoes, etc will last from 10 to 12 months

How to spot a badly mashed potato?

gluey mashed potatoes

The time that potatoes stay fresh it depends on certain factors, like

  • How the mashed potatoes stored
  • Whether the mashed potatoes have been cooked or not.

It’s hard to spot when cooked potatoes have gone bad.
Sometimes, cooked potatoes have fetid that indicates spoilage, this kind of may have bacteria without any signs.

Cooked mashed potatoes are a risky food for bacteria that can cause food poisoning because they contain moisture and contain some protein.

So if mashed potatoes are cooked it is best to eat them within 3-4 days of cooking and reheated them to 165°F, this will kill any bacteria that may have formed.

Note: The best way to spot a badly mashed potato is to smell and look at the potatoes: discard any that have an off smell or appearance, do not taste first.

The scent of spoilage:

Fresh potatoes have an earthy like the scent, when potatoes start to get bad it changes its smells and becomes bitter and moldy, Sometimes potatoes will look acceptable from the outside but will be decayed from the inside.

Best way to freeze mashed potatoes:

freeze mashed potatoes

Cooked your mashed potatoes as you normally do, make sure to add some cream and butter so it will help the mashed potatoes to freeze and reheat.

Scoop one-cup portions of the mashed potatoes into a baking paper or baking sheet, then keep them into the freezer for a few hours up to overnight, until the mashed potatoes were completely frozen.

Note: It is best to freeze the mashed potatoes instead of keeping it in fridge in case if you don’t want to use all the mashed potatoes in 3-4 days.

Best way to reheat mashed potatoes:

Reheating Mashed Potatoes


Mashed potatoes can be reheated back to their former creamy and smooth state, but we cannot just stick with the microwave and hope for best.

Mashed potatoes unlike other starchy dishes that are made with creamy, cheese, scalloped potatoes can develop a dry and sticky texture when the temperature is too high.

The best method is to reheat them on the stovetop or in the oven which method you choose depends on you. If you add some extra liquid to mashed potatoes to keep them from safe from drying out. Cream and buttermilk will be a good option for that. Start with a half cup of liquid for 4-5 cups of mashed potatoes.

If you are using the stovetop method than use medium heat to prevent potatoes often to prevent them from sticking at the bottom of the pan. if reheating mashed potatoes in the oven then mix the butter pieces spread the potatoes out in a baking dish. Reheat at 350 degrees Fahrenheit for 20 to 25 minutes. until potatoes reach 165 degrees Fahrenheit.

Advice before your mashed potatoes go spoiled :

mashed potatoes spoiled

Most people like to eat homemade food if you loved the kitchen and you don’t want that your mashed potatoes go bad or spoiled, you can make beautiful dishes for your buddies before your mashed potatoes go bad. Here is a list of recipes for your mashed potatoes with a source where you learn how to make those yummy dishes from potatoes. I hope you will like it 🙂

  • Creamy mashed potatoes with a complete video tutorial. Link
  • .Basic mashed potatoes(If you love good, old fashioned mashed potatoes this is the perfect recipe. Simple and delicious.) Link
  • Garlic mashed potatoes (These garlic mashed potatoes are rich and very tasty! For a creamier texture, use heavy cream in place of the milk. These are also terrific topped with green onions.
  • Suzy mashed potatoes (These are the best I’ve had! Red potato skins are full of flavor)
  • 22 Recipes to Change Up Your Mashed Potato Game. Link

Nutrition Facts Of Potatoes :

benefits of potatoes

It is important to know about which food is good for your health and which one is bad, To know about a healthier food we should see that how much nutrients that food contains, Here are some of the nutrition facts about potato.

Nutrients in 2/3 cup of boiled potatoes cooked with the skin but without salt are :

  • Calories: 87
  • Protein: 1.9grams
  • Carbs: 20.1 grams
  • Water: 77%
  • Fiber: 1.8 grams
  • Fat: 0.1 grams

Best Potatoes for Mashing :

Mashed Potatoes type

For mashed potatoes, we choose the best potatoes, which will make your recipe tastier. Our picks are (Russet Potatoes and Yukon Gold Potatoes ).

Russet Potatoes :

The reddish-brown(Russet) potato is a large potato with dark brown skin. The flesh is white, dry, and starchy, Which is very suitable for grilling, crushing, and frying. Reddish-brown potatoes are also called Idaho potatoes in the United States.

Yukon Potatoes :

Yukon potatoes are a bit more expensive than the russet potatoes, but they are worth it. They are naturally creamy when crushed, never plump, and have a slightly buttery flavor on their own. Among the brown Yukon, the most perfect is the creamy and buttery mashed potatoes.

Easy Creamy Mashed Potatoes Recipe

Mashed Potatoes Recipe

Before making a mashed potatoes recipe, ensure to use the best potatoes possible for better taste. We recommend that American people go for Russet potatoes or Yukon golds; otherwise, for Australian creme royale, creme gold is recommended.

It would be better if you used salted water for boiling because if you didn’t add salt to the water, it might yield bland-tasting potatoes.


  • Take 1KG potatoes ( ensure to go for fresh mashed potatoes)
  • 1/2 cup hot milk (if you want to take more milk, you can take)
  • One teaspoon salt
  • 1/3 cup unsalted butter
  • Finely chopped garlic (6-8 cloves)
  • Sour cream (1/4 cup)
  • Shredded parmesan cheese (1/4 cup, it’s optional if you don’t have it right now, we recommend making the easy creamy mashed potatoes without it)
  • For better taste, use salt and pepper.
  • Chopped parsley to garnish (1 tablespoon, it’s optional)


  • First of all, remove any spots, knots, lumps from the potatoes.
  • Peel and cut the potatoes in quarters lengthwise.
  • Take a larger pot and place all the potatoes on it, covered with cold and salted water by an inch. Let them boil for 15-20 minutes, reduce the heat to medium-low, and simmer until fork-tender.
  • When you know that potatoes are done nearly fork-tender, heat one tablespoon of the butter, it would be better to use a small pan over medium heat. 
  • Fried the garlic until fragrant, let them leave for 1-2 minutes, set aside, and ensure to keep warm.
  • Drain the cooked potatoes properly, add in the remaining butter, hot milk, cooked garlic, and sour cream.
  • Mashed potato with a potato masher. You can add extra milk if needed. If the potato doesn’t smooth properly with a potato masher, use a strong wooden spoon to make it more smooth.
  • Add in the parmesan cheese with pepper and salt for a fantastic taste. That was all about the creamy mashed potatoes recipe. Still, you are confused? Read the mashed recipe with more details.

Will Keeping It In an Airtight Container Make It Last Longer?

Potatoes stay longer when kept in sealed containers. This aids in avoiding the potatoes’ deterioration due to oxygen exposure and other pollutants.

Also, storing it in an airtight container stops moisture loss, which might eventually result in the potatoes drying up and hardening.

Also, it stops odors from other meals and raw materials in your refrigerator from permeating the air.

Where Can You Use Leftover Mashed Potatoes?

Mashed potato leftovers are a delicious and versatile ingredient that can easily be transformed into various dishes. 

From a savory breakfast scramble to a comforting side dish, here are some creative ways to use up your leftover mashed potatoes:

  • Potato Pancakes
  • Shepherd’s Pie
  • Mashed Potato Croquettes
  • Loaded Baked Potatoes
  • Soup Thickener
  • Potato Patties
  • Baked Mashed Potato Fingers
  • Potato Soup

If you like our article, be sure to check out how long strawberries last in the fridge.

Frequently Ask Questions:

1) Can eating too much mashed potatoes cause health problems?

Answer: Yes, if we look at the bodybuilding point of view, mashed potatoes are very fatty and container lots of carburetor. But for a normal point of view eating, too much of anything can cause problems and as we say potatoes are very fatty and it doesn’t provide a lot of nutrients to your body so eating a little number of mashed potatoes will be good for health.

2) Can i leave mashed potatoes for 8-10 hrs on a counter or table ?

While in a commercial situation, environmental health laws are very tough and you would be committing an offense to do this, at home things are somewhat different. Potato is a relatively safe food for leaving out too long. Even with milk and butter in mashed potatoes, it’s still a lot safer than any meat or fish. In all probability, it’s fine, particularly if it was covered. I would just say that when you reheat it, make sure that it reaches a temperature of 71 degrees Celsius.

3) Can you fry mashed potatoes ?

Yes you can. I often make extra just so I have some left over to fry. 

4) Can you leave potatoes out on the counter?

Yes, you can leave potatoes on the counter and at room temperature but ensure that don’t let them over 3-4 hours. After baking them, ensure to serve potatoes immediately. Besides this, it’s recommended to store your mashed potatoes in the refrigerator.

5) How long can peeled potatoes sit in water?

It’s recommended to peeled potatoes sit in water for 12-24 hours, don’t peeled them for more than 24 hours. Ensure that the water is not salted. Besides this, if you want to add ice to the water, you can add.


That was all about how long do potatoes last in the fridge, now we know how long mashed potatoes can long last. Mashed potatoes can actually long last if you keep it in a freezer instead of outside containers.

Don’t keep your potatoes with Onions and Apples because they produce gases which is not good for mashed potatoes aging. So just to make sure you use your mashed potatoes before they got spoiled.


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