Freeze Facts

Can You Freeze Kale?

Freezing Kale: A Comprehensive Guide to Preserving Your Leafy SuperfoodKale, the nutrient-packed leafy green beloved by health enthusiasts and culinary connoisseurs alike, is a versatile vegetable that can be enjoyed in numerous ways. From delightful soups to refreshing juices, there’s no shortage of creative ways to incorporate kale into your diet.

But what do you do with all that extra kale when your garden is overflowing or you’ve bought a large bunch at the market? Fear not, because in this article, we will guide you through the process of freezing kale, ensuring that none of this nutritious greenery goes to waste.

Additionally, we’ll explore freezing other leafy vegetables and discuss the dos and don’ts of freezing kale dishes. So, let’s get started on our freezing adventure!

Freezing Kale

Freezing Process

Freezing kale is a simple and straightforward process that involves a few key steps to preserve its flavor and texture. Here’s a step-by-step guide to freezing kale:


Trim Kale: Start by trimming away any tough stems and discarding any damaged or wilted leaves. This will ensure that only the freshest and most delicious parts of the kale are frozen.

2. Blanch Kale: Blanching is an essential step in the freezing process, as it helps to preserve the color, flavor, and nutritional value of the kale.

To blanch kale, bring a large pot of water to a boil and add the kale leaves. Allow them to cook for about 2-3 minutes until they turn bright green.

Then, quickly transfer the kale to a bowl of ice water to stop the cooking process. 3.

Pack Kale into Ice Cube Tray: Once the blanched kale has cooled, gently squeeze out any excess moisture. Then, chop or tear the kale into small pieces and evenly pack them into an ice cube tray.

This method allows for easy portioning when you need to use the frozen kale in your recipes later. 4.

Freeze Kale Cubes: Place the filled ice cube tray in the freezer and let the kale cubes freeze completely. This should take around 2-3 hours.

Once frozen, remove the kale cubes from the tray and transfer them to a freezer bag or airtight container for long-term storage.

Freezing Other Leafy Vegetables

While kale takes center stage in the leafy vegetable kingdom, other greens deserve their time in the freezer too. Here are a few methods for freezing other leafy vegetables:


Freeze Spinach: Spinach, known for its versatility and mild flavor, can be frozen to extend its shelf life. Simply blanch the leaves, drain them well, and pack them in airtight containers or freezer bags.

2. Freeze Cavolo Nero: Cavolo nero, also known as black kale or Tuscan kale, freezes well when blanched and packed in freezer bags or containers.

Trim the tough stems before blanching for a smoother freezing experience. 3.

Freeze Beetroot Tops: Don’t discard those vibrant beetroot tops! They can be frozen too. Remove the stems, blanch the leaves, and freeze them in the same way as kale or spinach.

Freezing Kale Dishes

Freezing Kale Soup

Kale soup is a comforting and nourishing dish that can be enjoyed year-round. To freeze kale soup for later consumption, follow these steps:


Cool Soup: Allow the kale soup to cool completely at room temperature before proceeding to the next step. This will prevent condensation and ice crystals from forming in the container.

2. Freeze Soup in Freezer Bags: Ladle the cooled kale soup into freezer bags, leaving some room at the top for expansion during freezing.

Seal the bags tightly, removing as much air as possible to prevent freezer burn. 3.

Defrost Kale Soup: When you’re ready to savor your frozen kale soup, transfer the frozen bag to the refrigerator the night before and let it defrost slowly. Alternatively, you can thaw the soup gently on the stovetop over low heat.

Freezing Kale Juice

Kale juice is a refreshing and nutritious beverage that can be enjoyed on its own or used as a base for smoothies. To freeze kale juice and ensure it stays fresh, consider these tips:


Use Freezer Bags or Tupperware Containers: Pour your freshly made kale juice into freezer bags or airtight Tupperware containers, leaving some room at the top for expansion. Make sure to seal the bags or containers securely to prevent leakage.

2. Freeze Juice in Ice Cube Tray: For smaller portions, freeze kale juice in an ice cube tray.

Once the cubes are frozen, transfer them to a freezer bag for easy storage and use. This method is particularly convenient when you want to add a nutrient boost to your smoothies.

Not Freezing Kale Chips

While kale chips are a delicious and healthy snack, they don’t fare well in the freezing process. Due to their delicate nature, freezing kale chips can result in an undesirable texture, leaving you with soggy or chewy chips.

To enjoy kale chips at their best, it’s recommended to consume them fresh and store any leftovers in an airtight container at room temperature.


By now, you’re armed with the knowledge to freeze kale and other leafy vegetables with confidence. Whether you’re stockpiling kale for the colder months or looking to preserve the abundance from your garden, freezing kale ensures you can still enjoy its nutritional benefits year-round.

From freezing kale cubes and blanching other leafy vegetables to freezing kale soup and juice, you now have a comprehensive guide to make the most of your leafy superfood. So go ahead, stock up your freezer, and indulge in delicious and nutritious kale creations whenever inspiration strikes!

3) Duration of Freezing

Shelf Life of Unblanched Kale

When it comes to freezing kale, blanching is highly recommended to preserve its flavor, color, and nutritional value. However, if you find yourself with an excess of fresh kale and no time to blanch it, you can still freeze it for later use.

It’s important to note that unblanched kale has a shorter shelf life in the freezer compared to its blanched counterpart. Ideally, unblanched kale should be consumed within 2 months of freezing to maintain the best quality.

After this timeframe, the flavor and texture of unblanched frozen kale may start to deteriorate, resulting in a less enjoyable eating experience.

Shelf Life of Blanched Kale

Blanching kale before freezing is the preferred method as it helps to preserve the kale’s vibrant color, fresh flavor, and nutritional integrity. Properly blanched and frozen kale can be stored for up to 6 months without significant degradation.

However, it’s important to keep in mind that while blanching helps to extend the shelf life of kale, the quality may gradually decline over time. To maintain the best flavor and texture, it’s recommended to consume blanched frozen kale within 6 months.

As time goes by, the frozen kale may start to lose its vibrant green color and become slightly softer. While the degradation may be minimal, it’s still best to use the frozen kale within the recommended timeframe to ensure the best taste and overall quality.

4) Proper Storage

Labeling and Planning

Effective storage practices go beyond simply throwing your frozen kale into the freezer. To ensure maximum freshness and minimize waste, labeling and meal planning are key.

Labeling your frozen kale with the date of freezing is essential for keeping track of its freshness. This allows you to prioritize consuming older batches first and ensures that no forgotten bags of frozen kale languish in your freezer for extended periods.

Additionally, consider labeling the bags with the quantity of kale inside for easy portioning during meal preparation. Furthermore, incorporating meal planning into your routine can help you make the most of your frozen kale.

By planning your weekly meals in advance, you can consciously incorporate the use of frozen kale into your recipes. This not only ensures that you utilize the kale before its quality significantly declines but also helps avoid unnecessary waste.

Refrigerator Storage for Raw Kale

While freezing kale is an excellent way to extend its shelf life, raw kale can also be stored in the refrigerator for short-term use. To keep your raw kale fresh and vibrant, follow these guidelines:


Washing and Drying: Before refrigerating, wash the kale thoroughly under running water to remove any dirt or debris. Gently pat it dry with a clean towel or use a salad spinner to remove excess moisture.

Moisture can accelerate the wilting of kale leaves, so it’s important to ensure they are as dry as possible before storage. 2.

Storage Container: Transfer the washed and dried kale into an airtight container or a plastic bag. Squeeze out as much air as possible to prevent wilting.

Alternatively, you can wrap the kale in a paper towel before placing it in a plastic bag to help absorb moisture and maintain freshness. 3.

Optimal Temperature: Store the container of raw kale in the vegetable crisper drawer of your refrigerator, where the temperature is slightly cooler and more stable than the main compartment. The temperature should ideally be around 32-36F (0-2C).

4. Shelf Life: Raw kale stored in the refrigerator can last for approximately 1 week if properly stored.

However, keep in mind that the leaves will gradually wilt and soften over time, so it’s best to consume the kale as soon as possible for the best taste and texture. By following these storage techniques, you can ensure that your raw kale stays fresh and ready to use whenever a healthy recipe calls for it.


As you can see, freezing kale is a fantastic way to prevent waste and ensure that you always have this superfood on hand. Whether you choose to freeze kale cubes, blanched kale, or create delicious kale dishes for later freezing, proper storage and understanding the duration of freezing are essential.

By blanching your kale before freezing, you can enjoy its vibrant color, fresh flavor, and valuable nutrients for up to 6 months. Conversely, unblanched kale should be consumed within 2 months for optimal quality.

Utilizing proper storage techniques such as labeling, meal planning, and refrigerating raw kale can further enhance your experience with this nutritious leafy green. So, embrace the freezing process, stock up your freezer, and embark on a kale-filled journey of delicious and healthy meals!

5) Defrosting Kale

Thawing Kale Leaves

Once you’ve stocked your freezer with frozen kale, you may be wondering about the best way to defrost and use it. While there are multiple methods you can employ, thawing kale leaves in a pan over low heat is a simple and effective approach.

Here’s how:

1. Remove Kale Cubes: Take the desired amount of frozen kale cubes from your freezer bag or container.

If you’ve labeled your bags, this step should be a breeze. 2.

Heat a Pan: Place a non-stick pan on the stove over low heat. Avoid using high heat as it may quickly cook and wilt the kale, compromising texture and flavor.

3. Add Kale Cubes: Once the pan is warm, carefully add the frozen kale cubes directly into the pan.

No need to defrost them beforehand. Let the kale cubes sit in the pan and slowly thaw.

4. Season and Cook: As the kale cubes thaw and soften, you can season them with your preferred herbs, spices, or sauces.

Adding a dash of olive oil, garlic, salt, and pepper is a classic combination. Stir occasionally to ensure even cooking.

Cook until the kale is tender and heated through. Thawing kale in a pan over low heat allows for gentle and controlled defrosting.

It also gives you the opportunity to season the kale according to your taste preferences, enhancing its natural flavors. Once thawed, the kale is ready to be used in a variety of dishes, such as stir-fries, pasta sauces, or omelets.

Get creative and let your culinary imagination run wild!

Using Kale Ice Cubes in Smoothies

Frozen kale cubes can be a game-changer when it comes to adding a nutritional boost to your smoothies. Incorporating frozen kale into your blend not only adds essential vitamins and minerals but also imparts a vibrant green color to your smoothie.

Here’s how you can make the most of kale ice cubes in your smoothies:

1. Prepare Ingredients: Gather your desired fruits, liquid base (such as water, almond milk, or coconut water), and any additional add-ins like protein powder or chia seeds.

Having these ready will make the blending process smooth and efficient. 2.

Add Frozen Kale Cubes: Take the desired amount of frozen kale cubes and add them directly to the blender. The frozen cubes will help maintain the coolness of your smoothie, eliminating the need for ice cubes.

3. Layer Liquid and Fruits: Pour the desired amount of liquid into the blender, covering the kale cubes.

Next, add your chosen fruits on top of the liquid. This layering technique ensures that the blender can easily process the ingredients, resulting in a smooth and creamy smoothie.

4. Blend until Smooth: Secure the blender lid and blend until all ingredients are well combined and the texture is smooth.

You may need to stop and scrape down the sides of the blender to ensure everything is properly mixed. By incorporating frozen kale cubes into your smoothies, you not only add a nutritional punch but also help keep your smoothie cool and refreshing.

Plus, with the convenience of frozen kale, you can enjoy a nutrient-packed smoothie any time of the year.

6) Refreezing Kale

Negative Effects of Refreezing

While freezing kale is an excellent preservation method, refreezing kale that has already been thawed should be avoided. This is because refreezing kale can lead to undesirable changes in texture and flavor.

When vegetables go through multiple freeze-thaw cycles, they tend to release more moisture, resulting in a soggy and mushy texture. Additionally, the repeated freezing and thawing process can adversely affect the overall flavor of the kale.

It may become bland and lose some of its freshness and vibrancy. To fully enjoy the best quality kale, it’s recommended to use it once it has been thawed and avoid refreezing it.

To avoid waste and ensure optimal enjoyment of your frozen kale, it’s advisable to portion it appropriately before freezing. By dividing the kale into smaller serving sizes, you can easily thaw what you need without the need for refreezing.

This way, you can maintain the quality, flavor, and texture of your kale and maximize its usage in your recipes.


Now that you know the best methods for defrosting kale and utilizing it in smoothies, as well as the negative effects of refreezing, you can confidently handle your frozen kale with care. Thawing kale leaves in a pan over low heat allows for gradual defrosting and the opportunity to add delicious seasonings.

Using frozen kale cubes in smoothies ensures a refreshing and nutrient-rich beverage, all while maintaining the coolness of your drink. However, it’s essential to avoid refreezing kale, as it can lead to a change in texture and flavor.

With these tips in mind, you can confidently incorporate frozen kale into your culinary adventures and make the most of this fantastic leafy superfood.

7) Quality of Frozen Kale

Blanching for Improved Texture

When it comes to freezing kale, blanching is a crucial step that not only helps preserve the color and flavor but also improves the texture of the frozen kale. Blanching involves briefly boiling the kale before submerging it in ice water to halt the cooking process.

While blanching is generally recommended for freezing kale, there is one exception where you may want to skip this step. Blanching kale helps to break down the tough cell walls and deactivate enzymes that can lead to the deterioration of nutritional content and flavor.

By blanching the kale leaves, you ensure that they maintain their structure and texture even after freezing. Without blanching, frozen kale may become limp, stringy, and less appetizing to eat.

To blanch kale, start by trimming away any tough stems and damaged leaves. Then, bring a large pot of water to a boil and add the kale leaves.

Allow the leaves to cook for about 2-3 minutes until they turn bright green. Be careful not to overcook the kale, as this can result in a mushy texture.

Once the kale is blanched, quickly transfer it to a bowl of ice water using a slotted spoon or tongs. The ice water shock stops the cooking process and helps retain the vibrant green color.

After a couple of minutes in the ice bath, remove the kale and gently squeeze out any excess moisture. Finally, chop or tear the blanched kale into smaller, manageable pieces before freezing.

Although blanching works wonders for most kale preparations, there is one notable exception: massaged kale salad. Massaging kale involves squeezing and kneading the leaves with your hands to break down their fibrous texture and make it more tender.

This technique is commonly used in raw kale salads as it softens the leaves and enhances their flavor. For those who enjoy the unique texture and taste of massaged kale salads, freezing the kale without blanching is an option.

The natural breakdown of the kale during the massaging process makes it more palatable, even after freezing. However, it’s important to note that the frozen massaged kale might still have a slightly different texture compared to fresh kale.

If you’re not a fan of the texture of frozen massaged kale, blanching is recommended before freezing to ensure a more desirable outcome. Blanching kale before freezing improves the texture of the frozen leaves and helps to maintain their visual appeal.

However, for those who prefer massaged kale salads, skipping the blanching step is an option to retain the desired texture even after freezing.


Understanding the impact of blanching on the quality of frozen kale is essential in ensuring the best texture and flavor when using it in your culinary creations. Blanching kale before freezing helps to preserve its vibrant color, retain its nutritional value, and improve its texture.

The blanching process breaks down the tough cell walls and deactivates enzymes that can lead to deterioration. However, for those who enjoy massaged kale salads, skipping the blanching step is an option to maintain the desired texture after freezing.

By paying attention to the blanching process, you can ensure that your frozen kale not only retains its nutritional benefits but also remains appealing and appetizing. So, whether you’re blanching the kale for improved texture or keeping it raw for a massaged kale salad, freezing kale allows you to enjoy its numerous health benefits and culinary versatility all year round.

Get creative, explore different recipes, and embrace the convenience of having frozen kale on hand to elevate your dishes and nourish your body. In conclusion, freezing kale is a valuable technique that allows you to preserve the flavor, color, and nutritional value of this leafy superfood.

Blanching kale before freezing ensures improved texture and helps retain its vibrant green color. Whether you’re thawing kale leaves in a pan for cooking or using frozen kale cubes in smoothies, proper defrosting techniques enhance the overall experience.

It’s important to ensure proper storage, follow recommended thawing methods, and avoid refreezing to maintain the best quality. By understanding the proper techniques and benefits of freezing kale, you can make the most of this nutritious ingredient, reduce waste, and enjoy its goodness year-round.

So, embrace the freezing process, experiment with different recipes, and savor the nutritional benefits of frozen kale in your culinary endeavors.

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