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Can You Freeze Leeks?

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Have you brought a whole lot of leeks for that dish that you’re making and don’t know how to store the rest? Well, freezing is definitely one of the best options for storing them!

Leeks belong to the onion family. They look like green onions but are a lot larger than that. Moreover, they are bulbous vegetables with white flesh and green leafy tops. 

Also, these vegetables taste extremely good, and you can use them in various dishes in different ways! For instance, they make an excellent addition to stews, soups, risotto dishes, and pasta.

So, can you freeze leeks? Yes, it is possible to freeze leeks. Leeks can be stored by freezing them so that they’ll stay fresh and retain that great mild flavor. Moreover, they can be stored for almost 10 months with the proper freezing technique.

Now, if you want to know more about how to freeze leeks, we recommend reading further to learn more!

Is It Possible To Freeze Leeks?

As we mentioned above, yes, it is possible to freeze leeks.

You can keep leeks in a perfectly edible condition for 2-3 months. However, if you want to keep them well for a more extended period, the fresher you freeze them, the better!

Leeks may freeze whole, but we recommend avoiding this technique of freezing. It is because they will take a longer period to defrost. Additionally, you also won’t be able to use your leeks until they have thawed completely!

How To Freeze Leeks

First, there are a few things that you require to freeze leeks. These include: 

  1. Knife and cutting board for trimming the root ends and excess stems of the leeks.
  2. A pot and a bowl for hot and cold water. They should be big enough to submerge the leeks in it. 
  3. Thick towel (or any other piece of cloth) for absorbing the excess water.
  4. Freezer bag or airtight container for saving the leeks in the freezer and also save on some space.
  5. Marker pen for marking the bag in which you have kept the leeks. This will help in easy access from the refrigerator.
  6. Baking tray for spreading your leeks on during flash freezing the leeks.
  7. Greaseproof paper for placing on the baking tray. You need to place the leeks on this.

Once you have the above things, you can begin to clean the leeks.

The main challenge with cooking leeks is that they are often very dirty. When leeks grow, they get covered in soil and dirt to be protected from too much sunlight. This is also to ensure that they grow light in color and become tender. 

However, this same process that ensures its tenderness results in sand and dirt lodged deep inside the leek!

There are basically two ways to clean leeks. The method you use depends entirely on the usage of the leeks. The two ways are as follows:

Chopped Leeks

Cut the roots off the leeks and slice them lengthwise. Now, decide how much leeks you require and make crosswise cuts. Leave the last couple of inches which are dark green in color.

Then place the chopped leeks in a bowl of cold water. Use hands to agitate the leeks and remove the dirt clinging onto them.

This process is best used for leeks which you’re planning on later incorporating into a soup or stew!

Whole Leeks

Place the leeks on a chopping board. Now insert the tip of your knife about ⅕ inches below the lowest opening of that leek.

Cut straight through the leek, forming a straight line, leaving the pale part of the leek whole. Open the leek and place it underwater.

Use hands to clean off any sand or dirt. Now, cut off the dark green tops of your leeks, keeping on the body of the leek as much as you require. Finally, discard the dark greens or save them so that you can use them later for soups!

Cut as close to the roots of the leeks as you can. This will hold the leeks together while cooking them whole.

Now that you’ve cleaned and prepped the leeks to your preference, let’s get into how to best prepare them for freezing!

Blanching The Leeks

Blanching is the best method to get crispy and tender leeks without affecting their nutrient content a lot. 

Get a large pot filled with ¾ quarters of water and boil it. Then, get another bowl full of water and ice.

Now, put the trimmed and cleaned leeks into the boiling water for about 30-40 seconds. Next, remove one leek using tongs. Then, test the tenderness of leeks by inserting a knife into the stalk.

Make sure that you apply gentle pressure to insert the knife into the stalk. Then, remove the leeks from the hot water and quickly transfer them into the bowl containing cold water.

Keep it for 1-2 minutes to ensure that your leeks don’t get cooked further!

Finally, drain the cooled leeks by emptying them into a colander.

Freezing The Leeks

You can use a thick piece of cloth to dry the leeks or you can shake them out and let them air dry. It’s very important to get rid of the excess moisture, which may ruin the texture of your leeks when frozen!

Once the leeks are dry, take a greaseproof paper and line the tray with it. Then, spread the leeks on the tray. Finally, let the leeks freeze for around 1 hour to freeze the outside portion of the leeks.

Now, you can put the flash-frozen leeks into a container or freezer bag. Don’t forget to seal the bag to remove air from the inside (as much as possible). Now, you can store it right in the freezer!

Best Tips For Freezing Leeks

If you want to store leeks properly, we have come up with a list of the best tips for freezing leeks. These include:

Try Freezing Leeks Without Blanching Them

Did you know that you can store leeks without blanching? But here’s the catch: this will shorten the period for which you can freeze them. So use them before the end of 1-2 months!

You may notice a decrease in its quality after that period.

Keep Track Of When The Leeks Were Frozen

Don’t forget to label the packet in which you’ve kept your leeks with the date you had kept them in the freezer. Frozen leeks can stay good only up to 1 year. So use it before the time ends!

Go For Airtight Containers And Find The Right Freezing Temperature

Your leeks can stay fresh for a more extended period only when stored in tightly sealed containers. If they are improperly stored or frozen for too long, they may turn mushy. 

Maintain your freezer at a constant temperature of 0°F or lower for them to stay fresh for a longer time.

Don’t Defrost Leeks In Certain Cases

If your leeks are frozen in thin slices, then it isn’t mandatory to defrost them! Instead, try boiling the leeks or sauteing them in melted butter!

Don’t Refreeze Your Leeks

We recommend that you do not refreeze the leeks. Freezing and refreezing the leeks leads to the breakdown of their structure

If you do it multiple times, you may end up destroying its texture. Make sure to use a method of freezing that allows you to thaw a portion at a time. 

Clean Leeks Well Before Freezing

When leeks are growing, they may collect plenty of dirt between them, especially on the outside. 

Before cooking or freezing, clean them from top to bottom by cutting the roots near the base, along with any extra leafy stalks. Also, don’t forget to wash the exterior of the leeks with running water. 

How Long Do Leeks Last In The Fridge?

If you have too many leeks left and want to use them quickly, we don’t recommend storing them in the freezer. Instead, store them in the fridge, and they’ll last for 7-14 days!

Before storing them in the fridge, remember to put them inside a perforated veggie bag. This will help in retaining the moisture of these delicious vegetables.

However, keep in mind that the leeks may become mushy after a couple of weeks if left in the fridge. So, if you’re planning to store it for a longer period, you may want to use an alternative that is freezing them.

Do You Need To Defrost Leeks? 

The best thing about leeks is that you don’t have to defrost them! Instead, you have other options to use leeks after freezing them. These include: 

  • Boil: Get a proper pot of water, add a few pinches of salt to it, and let it boil. Put the leeks in the boiling water and give it some time (5-8 mins approx). The leeks will quickly thaw and help to save time!
  • Saute Them: Spread some butter over a pan and place it over medium to low heat. Put your leeks on the pan and cook till it’s thawed out. Don’t use high heat immediately as this may result in the leeks remaining frozen from the center. 

How To Tell If Leeks Have Gone Bad

There are chances that if you don’t store or freeze your leeks properly, they may go bad. So, if you want to know whether they’re fresh or stale, look out for the below-mentioned signs: 


This is a very clear sign that your leeks have gone bad. Of course, if there’s only one small area with mold or rot, you may cut it and use it in case of any emergency.

However, if most areas are rotten, then discard the leeks immediately.

Mushy Or Slimy Body 

Just like other vegetables, leeks may lose their moisture and become mushy and slimy. So, if you notice that the leeks don’t feel firm enough, you need to get fresh ones. 

Bad Odor

Finally, any foul odor is also indicative of a rotten vegetable. If you feel like the leeks smell horrible after taking them out from the freezer, you definitely need to discard them!

How To Store Leeks At Room Temperature

There are many people who are skeptical of freezing vegetables over the fear of loss of nutrients. If you’re one of them, the good news is that you can store leeks at room temperature for a short duration. 

Follow the steps below to know how to store leeks at room temperature:

  1. Remove One Layer and Cut Them Short: First, take a knife, peel, and remove the first layer of the leeks. Then, cut them a bit short.
  2. Store Them: You need to store the leeks in a cool and dry place. For instance, you can go for a kitchen cupboard!

In this way, you can store leeks at room temperature for around 1-2 days

Related Questions

Now that we’ve gone over the best ways to freeze leeks and keep them safely stored, let’s take a look at a few related questions on the subject!

Can you freeze leeks without slicing them?

Yes, leeks can be frozen whole also. But we suggest that you avoid it because it will take a lot of time to thaw them and you will not be able to use them until then!

Should you blanch leeks before freezing?

It is highly recommended that you blanch your leeks before freezing them. 

Blanching helps lock the nutrients and flavor in any vegetable. So, with blanching, you can store it for an extended period of time. Therefore, this method will save not only your money but also your time!

Are there other methods to store leeks without freezing?

Yes, there are some methods, apart from freezing, that can help you store leeks. 

First, you can try refrigerating them or storing them at room temperature if you don’t want much hassle. Or, you can cut the leeks, and store them in cold water. This will keep them fresh for 1-2 days

Can I use leeks instead of onions?

Leeks are not well suited to being eaten raw since they’re much more fibrous than the other vegetables. But you can use them as an onion substitute while cooking.

Finely chopped leeks are a good substitute for onions in different recipes. They also add a mild and sweet flavor to the dish. 

What are the best leeks?

If you want to freeze and store leeks, you at least need to go for the fresh ones. Here’s how you can find the best leeks: 

More White Stalk And Less Green 

Unlike in green onions, in leeks, it is the white part that you eat. Select leeks with the long white stems!

Minimal Yellow Spots

The yellow spots in the leek indicate that they’re old and not fresh. So, go for leeks that don’t have a lot of those!

Crisp And Firm

Finally, look for leeks that are as firm as onions. Avoid the soft ones or the ones with wilting leaves. 

Final Thoughts 

While storing leeks may seem like a little bit of a tricky task, if you do it properly, then it is totally worth it! 

Just follow the steps that we have mentioned above, and you are good to go. It is like a one-time investment that will give you returns for an extended period of time. And any steps to prevent the wastage of food are always worthwhile!

So, we hope this article answered all your questions and helped you properly freeze leeks.

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