Do Walnuts Go Bad?

This post may contain affiliate links. I may receive a small commission at no extra cost to you. All opinions remain my own.

Walnuts can be savored as a delicious snack or an excellent addition to your preferred dishes.

They can also be used as an additive in baking recipes and as a garnish on salads.

But did you know that walnuts also go bad?

In this article, we will answer some common questions about walnuts and their shelf life.

How long do walnuts last?

The shelf life of walnuts depends on the variety of walnut and where it was grown.

Some varieties of walnuts, like California, Florida, and Texas, have longer shelf lives than others.

For instance, California-grown walnuts have a shelf life of around 18 months while those from Georgia have a shelf life of only 6 months.

This is because of the climate in which the nuts were grown.

If you buy raw walnuts, you can expect to eat them within a few weeks.

However, once they’ve been roasted, salted, or otherwise processed, their shelf life drops significantly.

In general, you can expect to eat them by the end of the year.

Do walnuts go bad if they are not refrigerated?

Yes, walnuts do go bad, but not all at the same time.

There are two types of spoilage in walnuts: rancidity and mold.

Rancidity refers to the oxidation of fats in the walnut, causing it to become more pungent and unpleasant tasting.

Mold is caused by bacteria, and while it may seem like a small issue, mold can cause serious health problems.

It can also make the walnut look unsightly.

To prevent these issues, it is important that you store your walnuts properly.

As mentioned above, most varieties of walnuts have a shelf life of one year.

The exception is California walnuts, which can last up to six years.

Keep this in mind when purchasing your walnuts so you don’t waste money on walnuts that won’t be edible after a year.

Do Walnuts Go Bad? 1

Can you tell if a walnut is bad?

You can tell if a walnut is bad simply by looking at its exterior.

If the shell looks brown or black, then it’s likely rotten.

If the husk is loose and falling off, then it’s probably spoiled.

You should also inspect the inside of the walnut, too.

If the walnut smells bad, or if there are holes in the shell, then it’s probably bad.

What are the signs that a walnut has gone bad?

Here are some signs that a walnut has gone bad:

It’s very soft and mushy.

There are large gaps between the shells.

It’s dark brown or black.

It has a strong odor.

It has a musty smell.

However, even though a walnut might appear to be bad, it still might taste fine.

To find out whether a walnut is safe to eat, try biting into it.

If it tastes off, then it’s definitely spoiled.

Do Walnuts Go Bad? 2

How should you store walnuts to keep them fresh?

When storing walnuts, it’s important to avoid keeping them in direct sunlight or heat.

Heat can accelerate the process of rancidity, making the walnuts taste worse over time.

Also, if you store your walnuts in a humid environment, then they will rot faster.

While it’s tempting to put your walnuts in the fridge, this is actually not recommended.

Instead, store your walnuts in a cool, dry place with low humidity.

A refrigerator is not ideal, since it tends to add moisture.

Instead, you want to store your walnuts in a cabinet or pantry.

Ideally, you should rotate your walnuts every three months, so keep track of when you bought them and discard any that are past their expiration date.

Can you freeze walnuts?

Freezing doesn’t extend the shelf life of walnuts, but it does help preserve them.

While freezing won’t help you get rid of mold and bacteria, it does slow down the rate at which the nuts deteriorate.

To freeze walnuts, first wash them well.

Then, cut each walnut in half and remove the pit.

Put the halves back together and wrap them in plastic wrap.

Afterward, lay the wrapped walnuts in a single layer on a cookie sheet lined with parchment paper.

Place the sheet in the freezer until the walnuts are frozen solid.

Once they’re frozen, transfer them to a freezer bag.

Remove the walnuts from the bag and you’re ready to enjoy them whenever you want.

What is the best way to use up old walnuts?

One of the best ways to use up old walnuts is to grind them into flour.

Just follow these steps:

1. Remove the skin from the walnuts.

2. Chop the walnuts into smaller pieces.

3. Add water to the chopped walnuts.

Make sure to add enough water so that the mixture is wet but not dripping wet.

4. Allow the mixture to sit overnight.

The next morning, drain the walnut pulp through cheesecloth.

Discard the liquid.

5. Transfer the walnut pulp to a food processor and pulse until it becomes a coarse powder.

6. Store the walnut flour in an airtight container.

Do walnuts need to be peeled before eating?

No, you do not need to peel walnuts before eating them.

How many walnuts should you eat per day?

Most people recommend no more than 2 ounces (57 grams) of walnuts per day.

However, if you have allergies, you should consult with your doctor before consuming walnuts.

Are walnuts good for you?

Yes, walnuts are a healthy snack.

They contain healthy monounsaturated fats, fiber, antioxidants, vitamins, minerals, and protein.

They are often included in weight loss diets due to their high nutritional value.

Keep in mind, however, that walnuts are high in calories.

One ounce of walnuts contains approximately 100 calories.

That said, you can eat plenty of walnuts without worrying about gaining weight.

Latest posts by Grace Lambert (see all)

Leave a Comment


How Long Do Grapes Last?

Does Yeast Go Bad?