How to Freeze Leeks?

Learn how to pre-slice, blanch, and store frozen leeks in the refrigerator. You’ll also learn how to cook with frozen leeks. Follow these steps, and your leeks will be ready to cook when needed. If you want to freeze leeks later, transfer them to a freezer bag. Seal it tightly with air, add a date label, and put it in the freezer. Once frozen, leeks will stay fresh for seven to 10 months.

Leeks should be arranged in a single layer on a baking sheet covered with wax or parchment paper. Leeks touching slightly need not be a concern but don’t pile them together since this could cause them to cling together and take longer to freeze. The leeks should be frozen after 30 minutes in the freezer.

How to Freeze Leeks (1)

How to Freeze Leeks?

This is the best course of action when it comes to freezing leeks. This will make it simple for you to remove a serving of leeks from the freezer whenever you need them.

It does require some planning, but after you’re done, you’ll have your ready-to-use supply of leeks:

Freezing Sliced Leeks

The best method for freezing leeks is this one. Additionally, it makes it much simpler to utilize them when you go to take a serving out of the freezer:

  1. Clean and cut the root end and any extra green stems from your leeks. Keep those green stems for stocks or soups since they still have some flavor. Leeks should be chopped or sliced into standard sizes for cooking.
  2. To blanch leeks, heat a big pot of water to a rolling boil. Leeks should be blanched in hot water for 30-45 seconds after being submerged. To prevent the leeks from cooking after removal, submerge them in cold water.
  3. Leeks that have been fully dried: Drain the leeks. They can lose their texture if you freeze them with too much extra liquid. Using heavy kitchen towels to absorb extra water will help this process.
  4. Flash Freeze: Select your desired freezing method. Leeks should be spread out over a greaseproof paper-lined baking sheet. Try to maintain a single layer of leeks. This tray should be flash-frozen for around an hour. This will cause the outside of them to freeze.
  5. The semi-frozen leeks can be tipped off the tray and into a freezer bag or container after being flash-frozen. As you close the bag, squeeze out as much air as possible. You don’t want to put air in your freezer! This will conserve space while while protecting the leeks.
  6. Final Freeze: Put this back in the freezer so you may later take out a handful of frozen leeks as needed.

The best technique to freeze leeks is in this manner, which guarantees good freezing and easy usability.

Blanching leeks 

If you’re looking for a convenient way to prepare leeks for cooking and storing, blanching them before freezing will help them retain their freshness. First, prepare a pot with water on high heat. Add the chopped leeks and leave them for 90 seconds. Drain and rinse under cold water. Afterward, place the leeks in a bowl of ice water to cool them down quickly.

Blanching the leeks before freezing will help retainer freshness, color, and flavor. When leeks are left without blanching, they will only remain fresh for about two months. Blanching leeks will take 30 seconds to one minute and should be done right after removing them from the water. Once they have cooled, transfer them to an ice water bowl and label them. When freezing, leeks can last up to 6 months if properly prepped and labeled.

If you don’t want to blanch your leeks before freezing, you cly thaw them first. Then, rinse them well and spread them apart with your fingers. Once they’re dry, you can then freeze them until you need them. If you don’t blanch them before freezing, the leeks can develop freezer burreducinguce the quality.

Storing leeks in the fridge

Leeks will keep for a few days in the refrigerator if they are cleaned and cut. Cut off the root end and cut the leek into half-moon-sized slices. Wrap them in a wet towel and tie the ends with an elastic band. Store them in a perforated plastic storage bag to keep the moisture in, and the leeks will last about two days. It is best to store cooked leeks in the refrigerator’s crisper drawer, which is the coolest part of the refrigerator.

You can also store them in jars. A cookie jar can be used for this purpose. Fill the jar with water and place the leeks inside. Leave them to freeze for at least an hour before using them. Use the jar method only if you plan to use them immediately.

When storing leeks, make sure to choose a cool and dark spot. A root cellar is a great place to store them. Make sure to place them on a bed of soil or sand. Check them frequently to make sure they are not rotten. You can use them within two weeks if you follow these simple tips.

How do you Defrost Leeks?

The good news is that your leeks do not need to be defrosted. These are your two choices:

  • Cook them
    After bringing a big saucepan of salted water to a boil, add your frozen leeks. Depending on the size of the pieces, give them 5-8 minutes to fry completely. They will defrost very rapidly in the heating water.
  • Cook them
    Leeks should be added to a pan with a knob of butter over medium to low heat. Cook gently until frozen. If you want to give them some color towards the end, turn the heat up high.

The leek center will stay frozen if you apply high heat too early.

How Long do Leeks Last in the Fridge?

Freezing leeks won’t be the best option if you have bought too many for your dish and want to use them quickly. Rather, please keep them in the refrigerator. They’ll keep in the fridge for seven to fourteen days.

Don’t wash them if you want to keep them fresh in the refrigerator. Just wash them before cooking, and they’ll last longer. Put them in a perforated vegetable bag and preserve them in the refrigerator. They will retain their moisture thanks to this.

After a few weeks in the fridge, leeks may turn mushy. So, you might want to consider freezing them if you want to keep them fresh for this long.

Do I have to Flash Freeze Leeks?

Flash freezing is cutting leeks on a baking sheet first, then putting the frozen leeks in a freezer bag or other container. The leeks will be loose and simple to take from the bag, which is a benefit. Flash freezing: Is it required? No. Most of the time, I don’t even bother; I grab the frozen bag, bang it on the counter to break up the pieces, and then take what I need out. Personal choice is all that matters, and if skipping a step may save me time without affecting the outcome, I’m happy to do it.

Do Leeks Freeze Well?

Leeks freeze quite nicely. Blanching is an important component, as we’ve already explained numerous times. The flavor of your leeks will quickly deteriorate if you don’t blanch them.

However, if you do blanch them, you’ll discover that leeks freeze exceptionally well and keep for a long time.

What is the Best Way to Freeze Leeks?

There are several ways to freeze leeks. Depending on how you typically utilize leeks, you can determine the best way to freeze them. If you want to use them in rings, freeze them since you want them to be easily accessible.

Reference: Effect of freeze-dried leek powder (FDLP) and nitrite level on processing and quality characteristics of fermented sausages

Can you Freeze Leeks Whole?

Leeks can be frozen whole, yes. But we’d stay away from it.

The reason is that defrosting will take a while, and until your leeks have had enough time to thaw completely, you won’t be able to prepare or chop them. Likely, you won’t want to eat leeks whole.

Instead of freezing your leeks whole, why not simply chop or dice them? It’s a lot more effective!

3 Tips for Freezing Leeks

Now that you know how to freeze leeks, here are our top three recommendations for getting the greatest results from freezing leeks:

  • Blitz Them
    Blanching your leeks before freezing them is something you must do, time permitting. It will take five minutes longer, but it will significantly impact the quality of your frozen leeks. Your work will ensure that they are nutrient- and flavor-rich.
  • Quickly Freeze Them
    Flash freezing is a great alternative to blanching and is very worthwhile. You can quickly remove a serving of leeks from the freezer as needed.
  • Disregard Defrosting
    If you freeze them in thin ribbons, your leeks won’t need to be defrosted. They’ll defrost, then cook in a pan straight from frozen. They can be boiled or sauteed in lots of butter.


Goodbye to food waste and hello to effective storage for vegetables. Leeks freeze incredibly easily and maintain their flavor and texture. The one caveat is that blanching them beforehand is a crucial step if you want to store them for a long time.

Ensuring the leeks don’t suffer from freezer burn is half the battle. Use a bag or sealable container that won’t allow air in to prevent this. A vacuum sealer is a fantastic tool for extending the life of your produce.