How Long Do Peanuts Last in Various Conditions?

Do you like all foods made of peanut such as oil, butter, etc. Don’t you lack this perennial vegetable in the kitchen? 

So, it would be best to know how long do peanuts last, how to preserve them, and how to tell that they have gone spoiled to avoid wasting your favorite nut and consuming unhealthy food.

To know the most feasible solution for all of those problems, just spend a few minutes reading the following helpful information and knowledge! 

How Long Do Peanuts Last in Different Conditions

how long do peanuts last

1. Once Opened

Commonly, bulk shelled peanuts can be only used after one month since the opened date. Once the outside air gets to them, oxidation will start its work within just weeks. 

Make a mental note of this if you hate the idea of throwing away expired nuts over and over.

2. In The Shell

Unshelled peanuts can last longer four times longer than shelled ones at room temperature.

In other words, get some can, and your favorite snacks will stay delicious and ready to fill your belly for 4 months straight.

3. After Expiration Date

After the expiration date, they can be last for two years when frozen or twelve months when refrigerated.

4. Unopened canned or bottled Peanuts

When sealed in a can or bottle, the shelf life of peanuts may go up to two years, even at room temperature, four years in the refrigerator, and, surprisingly, forever in the freezer.

5. In the freezer

Bulk raw peanuts in shell can last almost permanently when frozen. Meanwhile, shelled peanuts need to be blanched and unsalted to achieve the same lifespan in the freezer.

6. In the fridge

Should you refrigerate nuts, they will last longer than normal. For instance, bulk peanuts in shell will last as long as nine months in the fridge.

Still, shelled ones will expire after one-third of that time in the same condition.

6. Boiled peanuts

How long are boiled peanuts good for depending on how you store them. If you freeze boiled ones, you can keep them for several months, but the taste and texture will gradually deteriorate. But if we are talking about room temperature, these cooked can only stay for two or three days. After that, oxidation kicks in.

7. Honey roasted peanuts

Honey roasted peanuts are consumable for about three months if kept adequately at room temperature. Double that time for fridge condition.

How To Tell That My Peanuts Have Gone Bad? 

Can it go bad? Unfortunately, yes! Because of the high content of oil, they may go rancid if you do not preserve them correctly.

Know that they will be bad for you if they show one of the following signs:

– They smell sour (similar to the odor of sour milk).

– They taste bitter or sour instead of nutty.

– The nuts are covered with mold (black, white, or green spots on the surface) or become discolored.

– They feel shriveled rather than solid in your hand.

How To Preserve Peanuts 

If you want to keep them fresh but do not intend to store them until the next season, you had better keep them in a cool, dry, well-ventilated yet dark place.

Notwithstanding, if you want to preserve them for a much longer time, put them in the fridge or freezer.

However, only unshelled ones can maintain their quality and texture permanently without any specific storage method.


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1. What Are The Types of Peanuts?

Runner peanuts typically have two uniform-size seeds per pod, which is great for roasting, used as butter or beer nuts. They are often ready for harvest after around 140 days from planting.

Spanish peanuts are tiny, round seeds colored reddish-brown. Although they take only 120 days to be ready to harvest from planting, they are rich in oil content. Hence, these nuts are a crucial part of oil, snacks, or butter production.

Virginia peanuts take the same amount of time as Runner type to be ready to harvest. But here is a pleasant surprise, they usually feature two to three huge seeds per pod.

Valencia peanuts provide between three and six little oval seeds with a bright-red skin per pod.

People often boil fresh nuts or roast them in the shell to add more flavor to cocktails or make confection. You can harvest this type after 90 to 95 days from planting.

2. What Are the Health Benefits of peanuts?

Peanuts come with a lot of beneficial vitamins and minerals such as Biotin, Phosphorus, Manganese, Folate, Thiamine, Vitamin E, and Magnesium.

Besides, according to scientific researches, regular peanut consumption probably reduces the risk of gallstones and heart diseases in both genders.

A piece of good news for overweight people is that they are delicious food for weight loss that you can eat daily.

3. How many peanuts can I eat a day?

Several nutritionists recommend that you should take into your system one ounce a day to get the most out of these nuts.

Still, make sure not to let that amount double, or else the results will not be as wanted.

In case you want to know, raw peanuts are safe to eat, but they do not taste as good as the cooked ones, and so you might not be too fond of them.

4. What happens if you eat a lot of peanuts?

Whether peanuts good or bad for your health also depends on the amount that you eat.

In detail, an excessive amount of peanut intake (more than 2 ounces) will lead to reduced mineral absorption, weight gain, imbalance of omega fatty acid, and redundant sodium and saturated fat.

5. What happens if you eat bad peanuts?

No worries, after ingesting a handful of rancid ones, you will hardly fall ill and collapse right on the spot.

However, stale peanuts are still not good for your health, nor will they taste good. Therefore, it is best to discard them if they have gone bad.

Wrapping Up

When cooking, we can have alternatives for peanut oil if it goes bad. But some people love the their taste, they will hardly find the same substitutes.

So, it’d better know how long do peanuts last and how to preserve them, ensuring that the batches of yours stay fresh and scrumptious!

Thanks for reading!

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