I had heard an old kitchen-storage trick that sounded almost too simple to be true.
Put an apple in a bag of potatoes, and the potatoes will supposedly stay fresh longer.
At first, I wasn’t convinced.
Why would an apple make any difference to a bag of potatoes?
Potatoes are vegetables, apples are fruit, and they don’t seem to have much in common beyond the fact that both are often kept in the pantry.
Still, I had a bag of raw potatoes that I wanted to test the idea on.
So I took an apple, cut it in half, and placed one half directly into the bag with the potatoes.
Then I closed the bag loosely, put it in a cool, dark storage area, and left it alone.
I wasn’t expecting anything dramatic.
But when I checked the potatoes three weeks later, I immediately noticed that something had changed.
The potatoes hadn’t simply been sitting there unchanged.
There were signs of aging, but the results weren’t quite what I expected from the apple trick.
And the experiment taught me something important about storing potatoes: the apple isn’t necessarily the secret weapon people think it is.
First, Let’s Talk About the Apple
The idea behind putting an apple with potatoes is usually connected to ethylene, a natural plant hormone involved in ripening and aging.
Apples can produce ethylene, particularly as they ripen.
Ethylene can influence the behavior of other fruits and vegetables.
This is why the old advice about putting certain fruits together sometimes works for ripening.
But potatoes are a little more complicated.
Ethylene exposure doesn’t simply have one universal effect on every food.
In potatoes, ethylene can influence sprouting and other storage characteristics depending on the variety, temperature, concentration, and storage conditions.
That means the popular claim that “an apple will keep your potatoes from sprouting” shouldn’t be treated as a guaranteed food-storage rule.
In fact, ethylene exposure can actually encourage certain changes in potatoes under some conditions.
So the experiment wasn’t as simple as:
Apple = fresh potatoes.
There was much more going on.
What Happened After Three Weeks?
When I opened the bag after three weeks, the first thing I noticed was that the potatoes had changed slightly in appearance.
They weren’t as fresh-looking as they had been when I started.
Some had developed small sprouts.
Others looked slightly less plump.
A few had minor wrinkles.
The apple half had obviously changed much more dramatically.
It had become soft and visibly deteriorated compared with the fresh apple I had started with.
That part wasn’t surprising.
A cut apple contains exposed flesh, and once you cut it open, the surface is exposed to air and moisture loss.
But putting that cut apple inside a bag of potatoes introduced another issue that I hadn’t fully considered:
moisture.
The Biggest Problem Wasn’t the Apple’s Ethylene
This was the part of the experiment that changed my opinion about the whole trick.
A freshly cut apple is wet.
The cut surface releases moisture.
Inside a relatively enclosed bag, that moisture doesn’t simply disappear.
It can increase humidity around the potatoes.
And potatoes generally benefit from being stored in a cool, dark, dry, well-ventilated environment.
USDA guidance recommends dry storage for potatoes at approximately 60–70°F (16–21°C).
So putting a moist piece of cut fruit directly into a bag of potatoes isn’t necessarily an improvement.
In fact, it can create conditions that encourage deterioration.
That was the biggest lesson from my experiment.
Why Moisture Is a Problem for Stored Potatoes
Potatoes contain plenty of water naturally.
That’s one reason they can deteriorate when storage conditions aren’t right.
Adding additional moisture to a bag can create condensation or a humid environment, especially if the bag isn’t well ventilated.
High humidity can contribute to decay and mold problems.
This is why washing potatoes before long-term storage isn’t generally recommended.
You want to keep stored potatoes as dry as reasonably possible.
A cut apple is almost the opposite of that.
It introduces moisture into the storage environment.
So even though the apple sounds like a clever natural storage aid, it may be creating a condition you don’t actually want.
The Potatoes Were Still Usable—But I Had to Inspect Them
Three weeks doesn’t automatically mean that a bag of potatoes has gone bad.
Whole, raw potatoes can remain usable for considerably longer than a few days when stored properly.
But storage time isn’t the only thing that matters.
Before cooking older potatoes, I inspect them individually.
I’m looking for:
- Mold
- Rot
- Leaking moisture
- Extremely soft areas
- Severe shriveling
- Extensive greening
- Excessive sprouting
- Unpleasant odors
A potato that is still reasonably firm and free from significant spoilage can often be used.
A potato that is mushy, moldy, rotten, or severely deteriorated should be discarded.
That’s much more useful than blindly following a “three-week rule.”
Some Potatoes Started Sprouting
The sprouts were probably the most obvious sign that the potatoes were aging.
Potatoes naturally sprout as they get older, particularly under conditions that encourage sprouting.
Temperature and light are major factors in potato storage.
The apple didn’t magically stop that process.
This was another reason I wouldn’t describe the experiment as a guaranteed preservation method.
If you’re trying to prevent sprouting, your storage conditions matter much more than simply tossing an apple into the bag.
What Does Light Have to Do With It?
Quite a lot.
Potatoes should be stored away from light.
Exposure to light can cause potatoes to develop green coloration.
Green potatoes can contain elevated levels of naturally occurring glycoalkaloids, so heavily green potatoes should be treated cautiously.
This is why a dark pantry or cupboard is generally much better than a sunny countertop.
If you’re serious about keeping potatoes fresh, darkness is one of the simplest improvements you can make.
An apple isn’t going to compensate for potatoes sitting in direct sunlight.
The Storage Location Matters More Than the Trick
This was probably my biggest takeaway.
Before worrying about whether an apple belongs in your potato bag, ask where the potatoes are being stored.
Are they:
- In a cool location?
- Protected from sunlight?
- Kept dry?
- Well ventilated?
- Away from heat?
- Away from moisture?
Those questions matter much more.
A properly stored bag of potatoes can do well without any fruit being added.
A poorly stored bag may deteriorate quickly even if you add an apple.
What Happened to the Apple?
The apple half itself was the most dramatic part of the experiment.
It became soft and visibly aged.
The cut surface had changed color.
Eventually, a cut apple can become a source of moisture and potentially microbial growth if stored under unsuitable conditions.
That’s why I wouldn’t recommend deliberately putting a cut apple into a bag of potatoes for several weeks.
Even if someone has had success with the general idea of storing an apple near potatoes, a freshly cut half of an apple is a very different experiment.
You’re introducing exposed fruit tissue directly into a storage environment with vegetables.
That’s not the same thing as keeping an intact apple somewhere nearby.
What About Putting a Whole Apple in the Potato Bag?
This is a more interesting question.
A whole apple doesn’t have an exposed, juicy cut surface, so the moisture issue is different.
However, it still produces ethylene.
And ethylene can affect potatoes in complex ways.
So I wouldn’t rely on an apple as a universal potato-preservation method.
If your potatoes are sprouting quickly, changing the storage environment is a much more reliable approach than adding fruit.
Why Did This Trick Become Popular?
Old kitchen tricks often survive because they sometimes appear to work.
Someone stores an apple with potatoes.
The potatoes happen to remain in good condition.
The person concludes that the apple caused it.
But many other factors may have been responsible.
Maybe the potatoes were fresh when purchased.
Maybe the pantry was unusually cool.
Maybe the potatoes were a variety that stored well.
Maybe they weren’t exposed to much light.
Maybe the bag had good ventilation.
The apple gets the credit because it’s the most unusual part of the setup.
This is a common problem with household food-storage experiments.
Correlation doesn’t necessarily mean the trick caused the result.
Could the Apple Have Made Things Worse?
Potentially, yes.
The cut apple introduced moisture into the bag.
If the environment became humid, that could make conditions less favorable for long-term potato storage.
And if the apple itself began to decay, you now had a decomposing piece of fruit sitting next to your potatoes.
That’s not something I’d intentionally create.
If a potato-storage method depends on putting fresh produce next to other fresh produce, I’d want a very good reason for doing it.
What I Would Do Differently Next Time
If I wanted to see how long my potatoes could remain usable, I’d run a different experiment.
I’d start with potatoes of similar age and condition.
Then I’d divide them into several groups.
One group would be stored normally.
Another could be stored with an intact apple.
Another could be stored with a cut apple.
I’d keep the groups in the same environment and inspect them regularly.
That would make it much easier to see whether the apple actually made a difference.
But even then, I’d consider it a food-storage experiment rather than a recommendation.
The safest and simplest approach is still proper storage.
The Best Way to Store Raw Potatoes
Instead of relying on an apple, focus on the basics.
Keep Them Cool
Potatoes generally do best in a cool storage environment.
USDA guidance gives approximately 60–70°F (16–21°C) for dry storage.
Keep Them Dark
Avoid sunlight and bright light.
Keep Them Dry
Don’t store potatoes wet.
If possible, don’t wash them until you’re ready to cook them.
Allow Airflow
A breathable bag, basket, or ventilated container is preferable to trapping potatoes in a damp, airtight environment.
Keep Them Away From Heat
Don’t store them directly beside an oven, stove, radiator, or other heat source.
Inspect Them
Check periodically for soft spots, mold, rot, and sprouting.
Remove potatoes that are clearly deteriorating.
What About the Refrigerator?
You might be tempted to put the potatoes in the refrigerator after reading all of this.
Generally, that’s not necessary.
USDA produce-storage guidance recommends dry storage around 60–70°F rather than refrigeration for potatoes.
A cool, dark pantry is generally a better home for whole raw potatoes.
The refrigerator can also affect potato quality and cooking characteristics.
So the solution to potato storage isn’t necessarily “make them colder.”
It’s store them appropriately.
What If My Potatoes Already Have Sprouts?
Don’t automatically panic.
A few small sprouts don’t necessarily mean the potato has to go straight into the trash.
Inspect the potato.
If it’s still reasonably firm and otherwise healthy, remove the sprouts and evaluate the potato before cooking.
But if it’s heavily sprouted, very soft, moldy, rotten, or significantly green, it’s better to discard it.
When a potato shows multiple signs of deterioration, trying to rescue it isn’t worth the risk.
What If a Potato Is Green?
Be more cautious.
Green coloration itself is caused by chlorophyll, but greening can occur alongside increased glycoalkaloid levels.
If a potato has extensive green areas, especially along with bitterness or other signs of deterioration, discard it rather than trying to save it.
This is another situation where the condition of the individual potato matters more than how many days it has been stored.
Three Weeks Later: What Did I Learn?
The biggest lesson wasn’t that the apple trick worked or failed.
It was that potato storage is more complicated than one simple kitchen hack.
The half apple didn’t magically preserve the potatoes.
Instead, it introduced another variable into the storage environment.
The potatoes still aged.
Some sprouted.
Some shriveled slightly.
And the cut apple itself deteriorated dramatically.
The experiment made me much more interested in the fundamentals of storage.
A cool, dark, dry, ventilated environment is far more important than trying to find a magical ingredient that keeps potatoes fresh forever.
Frequently Asked Questions
Does putting an apple in a bag of potatoes keep potatoes from sprouting?
Not reliably. Apples produce ethylene, and ethylene can affect potato sprouting and storage behavior. The effect depends on storage conditions and other factors, so an apple shouldn’t be considered a guaranteed sprout-prevention method.
Can I put half an apple in my potato bag?
I wouldn’t recommend deliberately storing a cut apple with potatoes for an extended period. The exposed apple flesh can release moisture and eventually deteriorate, potentially creating an unfavorable environment for the potatoes.
Does an apple make potatoes last longer?
There isn’t a simple guarantee that it will. Proper temperature, darkness, dryness, ventilation, and the initial quality of the potatoes are much more important factors.
Why did my potatoes sprout even though I put an apple in the bag?
Sprouting is influenced by factors such as temperature, light, variety, and storage conditions. Adding an apple doesn’t override those factors.
How should I store potatoes?
Keep whole raw potatoes in a cool, dark, dry, well-ventilated location. USDA guidance lists approximately 60–70°F (16–21°C) for dry storage.
Should potatoes be washed before storage?
It’s generally better to keep stored potatoes dry and wash them shortly before cooking.
Can I eat potatoes after three weeks?
Potentially, yes. Three weeks alone doesn’t make a raw potato unsafe. Inspect each potato for mold, rot, severe softness, extensive greening, and other signs of deterioration.
Should I throw away the whole bag if one potato is rotten?
Not necessarily. Remove the rotten potato and carefully inspect the others. Any potatoes showing signs of spoilage should also be discarded.
The Bottom Line
Three weeks after placing half an apple in my bag of potatoes, I didn’t discover a magical food-preservation secret.
What I discovered was something much more useful.
The condition of the potatoes and their storage environment matter far more than a viral kitchen trick.
The apple half aged rapidly.
The potatoes continued to change naturally.
Some developed sprouts.
Some became slightly wrinkled.
And the experiment made it clear that introducing a moist piece of cut fruit into a bag of potatoes isn’t necessarily a good idea.
If you want potatoes to last, don’t focus on finding a magic companion for them.
Instead, give them what they actually need:
Cool temperatures.
Darkness.
Dry conditions.
Good airflow.
Regular inspection.
And if you find a potato that’s moldy, rotten, extremely soft, or heavily green, don’t try to convince yourself that an old storage trick will make it safe.
Sometimes the simplest solution is the best one.
Keep the potatoes dry.
Keep them dark.
Keep them cool.
And perhaps most importantly, don’t put a cut apple in the bag and expect three weeks later to look like the first day.
The experiment may have started as an attempt to make potatoes last longer.
It ended as a reminder that when it comes to food storage, the boring basics usually beat the clever hacks.