Can You Freeze Celeriac?

Yes, you can freeze it. Celeriac can be frozen for up to 1 month. Once prepared and blanched, celeriac can be frozen in good-quality freezer bags.

How To Freeze Celeriac

Celeriac may last for several weeks when stored in the cupboard in the dark but sometimes you simply don’t have the time to use it up. That’s where freezing will always come in handy.

But before you just go tossing your celeriac stock into the freezer, there are a few steps you ought to take:

As you know, this root is white. If frozen directly, the root tends to oxidize and fade to a brown shade and no one wants brown celeriac. Hence, it is necessary to blanch the celeriac and treat it with lemon so that it stays fresher looking, for longer.

Adding acid in the form of lemon further reduces the speed at which the enzymes work to delay the process of discolouration.

Follow the steps below to freeze celeriac the right way:

  1. Peel and Prepare
    Peel the outer layer of the celeriac and remove the smaller roots and shoots. Wash it well. You’ll find dirt can get into all sorts of cracks and crevasses so give it a good wash.
  2. Cut
    You can either grate the bulb or cut it out into squares. Just think about how you will normally use your celeriac and prepare it in the same way.
  3. Prepare Boiling Water
    In a pot of boiling water, add some lemon juice. For roughly 3 litres of water, you’ll want to add a rough tablespoon of lemon juice.
  4. Blanch
    Use a blanching basket (if you have one) and place the celeriac in it. You can now lower it into the water and leave it for about 3 minutes. If you don’t have a blanching basket then a colander will work. It just makes it easier to remove the celeriac in one go.
  5. Cool
    Immediately after removing the celeriac from the boiling water, submerge it into ice-cold water. This will halt the cooking process. You don’t want to overcook it.
  6. Drain
    Drain water from the celeriac and blot it dry.
  7. Bag Up
    Place your blanched celeriac into resealable bags. Consider how much celeriac you’d need for a portion and freeze in these quantities.
  8. Seal and Freeze
    Seal the bags up, removing as much of the air as possible then place into the freezer.

How to Freeze Celeriac Dishes

Celeriac can be made into a variety of dishes, all of which can actually be frozen. We’ve covered a few of the most popular celeriac dishes below:

How to Freeze Celeriac Mash

Mashed celeriac is often used as a nutritious alternative to mashed potatoes. We all know that mashed potatoes are a little unhealthy and a bit of a carb overload whereas celeriac mash can be far healthier – counting as one of your five a day too!

So, how can you freeze celeriac mash? Like raw celeriac, celeriac mash tends to get discoloured when it is frozen directly. You can use either lemon juice or ascorbic acid to keep the celeriac mash fresh and white for a long time.

You can add a few teaspoons of lemon juice or ascorbic acid and mix it into the celeriac mash. Once this is done, take the mash and fill it into airtight containers or zip lock bags.

Make sure that there is no air in the bag. You can now go ahead and store it in your freezer. It will remain fresh for up to 6 months.

How to Freeze Celeriac Soup

Yes, you can freeze celeriac soup to give you an easy, ready-to-go supply of healthy lunches. However, to keep it fresh, you must not add any sour cream and milk-based products to the soup before freezing.

We’ve written about freezing soups before so if you want to learn more about freezing soups then click here.

Can You Freeze Soup

Most celeriac soups are made by blitzing cooked celeriac with other vegetables and stock. Once this step is completed, some people will stir in creme fraiche or cream or make it velvety smooth.

However, if you want to freeze the celeriac soup, stop at the blitzing point.

You can now fill this soup into airtight containers and keep it in the freezer. It will store well and remain fresh for up to a month.

If you’re still desperate for some cream then remember that soups generally have cream added in the last step, and you can complete this simple final step after defrosting the celeriac soup when reheating it. Just swirl a little bit of cream into your soup.

3 Tips for Freezing Celeriac

Now you know how to freeze it, we’ve got our 3 top tips which we strongly recommend following when freezing celeriac to have the best results:

Blanch It
With all vegetables, we would strongly advise blanching it beforehand. This will help retain texture, flavour, colour and nutrients whilst only taking a few minutes of extra time. 

Mix With Other Veggies
You can create ready-mixed bags of similar veg. Try mixing celeriac with carrot, parsnip, swede, turnip or kohlrabi. Where possible, cut them into similar-sized cubes. 

Roast from Frozen
Cubes of celeriac can actually be roasted straight from the freezer. Toss the celeriac with some olive oil and salt then place it into a hot oven for 30 minutes or so. Check it is hot and cooked through before serving. 

How Long Can You Freeze Celeriac?

In many forms, celeriac can be frozen for up to a month. It retains its delicious flavour and freshness up to this point.

However, if you do not add the necessary acidic substance like lemon juice to the celeriac, it will discolour quickly. With the right freezing procedures discussed above, it can be safely stored without it changing in colour.

You Can Freeze Celeriac for Around 1 Month

How Do You Defrost Celeriac?

Thawing or defrosting celeriac is a relatively easy procedure. All you have to do is take the frozen celeriac in its bag and place it in the fridge. You can keep it for a couple of hours or even overnight and wait for it to thaw.

Once it has defrosted, leave it on the worktop so that it comes up to room temperature. This is how you’d need to thaw it if using it for remoulades or coleslaw.

However, if you are cooking celeriac, you don’t have to thaw it. Simply add it to a roasting tray, boiling water or steamer and cook it how you normally would just add a little extra time to allow it to cook through.

With celeriac mash, you can defrost it in the same way as blanched celeriac. Simply place it in the fridge overnight, and your mash will be defrosted. If you find separated moisture, simply mix it into the mash.

For the celeriac soup, you can either defrost it in the fridge or simply heat it with a little water before you add the cream to it.

Can You Refreeze Celeriac?

It is recommended that you do not refreeze celeriac. This is because celeriac has a high moisture content, and freezing and thawing can disrupt its cells, causing them to break down leaving you with mushy celeriac.

Furthermore, food that is frozen and defrosted tends to hold on to more bacteria than fresh food. For these reasons, it is best to avoid refreezing celeriac or dishes made of it. Having said that, you can refreeze cooked celeriac if it was once frozen uncooked.

For example, if you have frozen raw celeriac and then made a soup with it, you could freeze this soup.

Does Celeriac Freeze Well?

Celeriac is a delicious root vegetable full of nutrients and has high water content. It freezes very well but needs an acidic agent like lemon juice to prevent discolouration.

If you avoid refreezing it and use it up within a month, then celeriac does freeze really well.

Related FAQs

If you’ve still got questions about freezing celeriac or celeriac in general, then these may help:

Can You Freeze Celeriac Puree?

Puree can be frozen in much the same way as celeriac soup. The first thing to note is that you will want to ensure you have added a little bit of acid to your puree.

The easiest way to do this is by adding a squeeze of lemon juice. This will stop it from turning brown. You’ll then want to place your puree into a thick freezer bag before sealing up, removing as much of the air as possible.

Can You Freeze Remoulade?

Remoulades and coleslaws tend not to freeze particularly well, especially if it has been made with a mayonnaise-based dressing.

The dressing will often split which will give your remoulade a grainy or gritty texture. Instead, try freezing your celeriac grated. When you want a remoulade, make it fresh for the following day.

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