A little-known fact around pistachios is the in China, the nuts space quite regularly referred to together the ‘happy nut’.

I’m sure you are wondering why. Well, this is because pistachios if in their covering which is contempt cracked open look favor they’re smiling.

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For this reason, throughout the Chinese brand-new Year, pistachio nuts often have provided out as presents or favors.

These nuts are further believed to be a symbol of happiness, an excellent health, and fortune.


Pistachios often tend to flourish in bunches, kind of prefer grapes, and also are surrounding by a fleshy exterior and also are actually, think it or not, related to mangoes (crazy, ns know).

When they ripen, the pistachio nut grow inside until the shell splits open revealing the seed inside.

But before we drop more interesting titbits about the happy nuts, let’s talk about a couple of key points relating to these environment-friendly nuts.

How deserve to you call if pistachios are bad?

Like all other nuts, pistachios have the likelihood come go poor if they are not save in the appropriate manner.

There are of course a pair of methods to tell once pistachios space going bad. Foremost is to take a whiff of the pistachios.

Rotten or stale pistachios have tendency to provide off a foul smell, type of like repaint or according to some people, nail polish remover.


A to crawl look in ~ the pistachios can likewise give hints whether they space bad. It is in wary of any kind of mold ~ above the pistachios.

This leader to the creation of part powdery coating top top the nuts.

Also, be keen top top the dried-out human body of the nut the looks dehydrated, practically like it shed most that the nutmeat and there is just “excess” skin left over.

It goes there is no saying that the presence of any kind of bugs or insects in the packaging, as well as an odd shade of the pistachios should also be a tell-tale authorize that the nuts have gone bad.

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How long do shelled pistachios last?


The shelf life that shelled pistachios, just like many other nuts substantially depends top top the path in i m sorry the nuts are stored.

First, for pistachios, a cool, dry area is the many ideal place for storage.

If you space keen ~ above maximizing and extending the shelf life of her shelled pistachios after opened the packaging, it is highly advisable to ar them in a strict sealed airtight container.

These correctly stored pistachios will certainly last for about one to two weeks at typical room temperature within her pantry.


In the case where you would want to further prolong the shelf life of your shelled pistachios, storing castle in the refrigerator would be a great idea.

This will save the pistachio nuts fit and fresh for about three months or so.

And yes, friend can definitely choose to walk a step further and also freeze the pistachios.

This an approach will for sure the nuts keep their ideal quality for around twelve months.

When freezing pistachios, that is finest to do the freezing automatically you acquire home, and also not wait a couple of days prior to getting to it.

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How long do roasted pistachios last?


Roasted pistachios are easily accessible for purchase while in the shell and also shelled ones, the is, without the shell.

I would recommend you purchase the persons in the shell for longer shelf life.

It would also be more advisable to purchase roasted pistachios in small quantities and store them in an airtight container or a hefty plastic bag.

When it concerns the roasted nuts, as soon as stored they will certainly last for around three to 6 months, the is if they are stored in the proper manner.

Alternatively, you may additionally choose to store your nuts in the frozen fridge or freezer.

Always ensure that you have actually checked for the expiry or ‘sell by’ date noted on the packaging through the manufacturers.


(This is if girlfriend buy conveniently roasted pistachios as opposed come roasting lock at house yourself).

This will give you a unstable estimate of how long the dried roasted pistachios can last.

For short term warehouse of increase to 3 months, it would certainly be ideal to keep the nuts in a pantry if you have one.

It would certainly be more ideal to keep your nuts in one airtight glass container rather than a plastic container due to the fact that this will rise the size of time the nuts can remain new for.


It is precious noting the the vital to save roasted pistachios in the pantry is to ensure that they are not exposed come heat during storage.

This is since the warm could influence the oil in the pistachios and act together a catalyst in do the nuts go poor even quicker.

Six months Storage

For warehouse of up to six months, storing her roasted pistachios in the refrigerator would certainly be a much better option.


Nuts have tendency to it is in a really smell absorbent collection of foods, as such, keeping them away from various other strong-smelling foods would be finest (yes, even in the refrigerator).

That method you avoid them picking up the fragrant of adjacent foods.

It is also wise to ensure the the packaging or container is airtight to stop condensation when the nuts space in the refrigerator.

Pistachios long-term storage.

For longer-term storage, freezing the nuts is the way to go.

Freezing the pistachios will save them fresh for approximately one whole year.

In order come maximize freshness, freeze the nuts immediately after pass them home if store bought or as soon as cooled ~ roasting them in ~ home.

What do bad pistachios look like?


Generally, the consumption of stale pistachios in little quantities might not instantly lead come you becoming sick.

It would certainly not recipient to do so as in the long run, the may bring about digestive troubles or have more harmful effects on her body.

Some other an ext distinctive indicators or pointers the pistachios have gone poor are:

Discoloration: new pistachios vary in shade from yellowish red to green, if you an alert that they have started to look more of brown, climate they might be walking bad.Shriveled, dried the end nutmeat: This is wherein the external of the nut looks dehydrated as contrasted to the rest of the nut.Mold on the surface of the nut that creates a powdery great on the nuts.Insects or bugs in the package. This is a no-brainer if you open up the packaging or container and see creepy crawlies, throw the whole bag away.

What happens if you eat old pistachios?


Strictly speaking, us all understand that noþeles under the sun has actually the capability to walk bad, yes, even pistachios.

Now, stale pistachios are not specifically unsafe come eat (that is if consumed in little quantities) however who would want to deliberately experience that sharp uncomfortable taste ~ doing so?

Most nuts contain some fats that react once they room exposed come heat, light, and also air.

This breaks the bonds in the molecules and the fat acids left behind space what do nuts rancid.


If girlfriend eat stale pistachios, opportunities are the you won’t suffer any side effects, various other than the uncomfortable taste in her mouth.

But in some cases, they deserve to lead to wake up of the lining of your stomach and intestines as well which causes a stomach upset and having gas.

You may likewise experience nausea, vomiting, or also diarrhea.

In some really rare and also isolated cases, eating together contaminated nuts may reason worse symptom to show up right away.

If so, You must seek clinical attention instantly if any kind of of the symptoms you are having actually are major or extreme.

Are brown pistachios bad?


The pistachio fruit naturally has actually a difficult exterior shell that is brown in color.

The seed, however, has light environment-friendly flesh. As soon as the fruit ripens, the shell changes from eco-friendly to a yellowish red color.

However, according to history, once pistachio nuts were very first imported come the United claims from the center East, they to be dyed in order come cover or hide the stains showing up on the shells native outdated harvesting methods being used then.

To date, part pistachios room still dyed red for marketing functions so occasionally you might come throughout red pistachios.


Once you notice that the pistachios have actually started arising an weird dark brown color, they space going bad.

There yes, really is no must risk consuming the nuts in ~ this stage.

It would certainly be better to simply throw them out and also get an additional pack. That will save you the unpleasant spicy taste and also a potential uncomfortable stomach and gas.

Why room my pistachios soft?


Your pistachios space soft since they have actually probably to be exposed come the air and have soaked up some moisture from them.

You could shot drying them increase or refreshing lock by toasting castle in an oven. Spread out the nuts the end on a baking sheet or a shallow pan.

Set the baking sheet or pan in the hot oven, nearby the door, and also turn the range off to let the nuts cook in the preheated oven.

Five minutes should be sufficient for the nuts to have started browning a little. If lock have, eliminate them native the oven and also let lock cool.

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In case they room not dry yet, leaving them within for another three minutes or thereabout.

The pistachios can conveniently burn, for this reason you have to be alert and also keep a close eye top top them throughout the process.

Sometimes, the pistachios will certainly still feeling a little bit rubbery and soft while hot, yet the crucial is come let castle cool off first.