How Long Will Walnuts Keep In The Refrigerator

Walnuts will keep in the refrigerator for up to six months when stored properly in an airtight container.
 
If you’ve been wondering how long will walnuts keep in the refrigerator, the answer depends on whether they’re shelled or unshelled, and how well you protect them from air and moisture.
 
In this post, we’ll explore exactly how long walnuts keep in the refrigerator, the best ways to store them, and how to tell when they’ve gone bad.
 
Let’s get to it.
 

How Long Will Walnuts Keep in the Refrigerator?

Walnuts will keep in the refrigerator for several months, but the exact timeline varies depending on their form.
 
Here’s a breakdown of how long walnuts last in the fridge:
 

1. Shelled Walnuts Last About 6 Months

Shelled walnuts, also called walnut kernels or halves, will keep in the refrigerator for up to six months when stored in an airtight container.
 
The cold temperature slows down the oxidation of the natural oils inside the nuts, which is what causes them to go rancid over time.
 
If you’ve ever wondered how long do walnuts last in the fridge once they’re out of their shells, six months is a solid estimate.
 

2. Unshelled Walnuts Can Last Up to a Year

Walnuts still in their shells will keep in the refrigerator for up to twelve months.
 
The shell acts as a natural barrier, protecting the nut inside from air, light, and moisture.
 
That said, how long walnuts keep in the refrigerator still depends on the storage conditions.
 
Even unshelled walnuts will eventually lose their freshness, so it’s best to use them within a year for the best flavor.
 

3. Chopped or Ground Walnuts Have a Shorter Shelf Life

If your walnuts are chopped, ground, or otherwise processed, they won’t keep in the refrigerator quite as long.
 
Chopped walnuts typically last about three months in the fridge because more surface area is exposed to air.
 
So if you’re asking how long will walnuts keep in the refrigerator after chopping, plan to use them within three months.
 

How to Store Walnuts in the Refrigerator

Knowing how long walnuts keep in the refrigerator is one thing, but storing them correctly is what makes that timeline possible.
 
Here’s how to do it right:
 

1. Use an Airtight Container

The single most important step is sealing your walnuts in an airtight container.
 
Glass jars with tight-fitting lids or vacuum-sealed bags work best.
 
This keeps moisture out and prevents the walnuts from absorbing odors from other foods in your fridge.
 

2. Keep Them Away From Strong-Smelling Foods

Walnuts absorb odors easily because of their high oil content.
 
Store them away from onions, garlic, or strong cheeses so their flavor stays clean and nutty.
 
This simple step helps walnuts keep in the refrigerator without picking up unwanted tastes.
 

3. Consider the Freezer for Longer Storage

If you want to extend how long walnuts keep beyond the refrigerator timeline, the freezer is your best friend.
 
Shelled walnuts will keep in the freezer for up to a year, and unshelled walnuts can last even longer.
 
Just make sure they’re in a freezer-safe airtight container to prevent freezer burn.
 

How to Tell If Your Walnuts Have Gone Bad

Even when you know how long walnuts keep in the refrigerator, it’s smart to check them before using.
 
Here’s how to tell if they’ve gone bad:
 

1. They Smell Like Paint or Crayons

Rancid walnuts give off a sharp, bitter smell that’s often compared to paint thinner or old crayons.
 
If your walnuts smell off, toss them out no matter how long they’ve been in the refrigerator.
 

2. They Taste Bitter or Soapy

A quick taste test will tell you a lot.
 
Fresh walnuts taste mild and nutty, while spoiled ones taste bitter or soapy.
 
If that happens, don’t eat them, because rancid oils aren’t good for your health.
 

3. They Look Shriveled or Moldy

Visible mold or a shriveled, dried-out appearance means your walnuts have passed their prime.
 
This is why checking on them periodically helps you track how long walnuts keep in the refrigerator in your specific conditions.
 

So, How Long Will Walnuts Keep in the Refrigerator?

Walnuts will keep in the refrigerator for up to six months when shelled and up to a year when unshelled, as long as they’re stored in an airtight container.
 
Chopped or ground walnuts have a shorter window of about three months, so label them with the date you stored them.
 
For longer storage, the freezer is always an option that can extend their freshness well beyond the refrigerator.
 
Now that you know how long walnuts keep in the refrigerator, you can stock up without worrying about wasting them.