How to Freeze Fresh Herbs for Better Flavor

Freezing fresh herbs preserves much of their flavor, color, and aroma for later use. It works especially well for basil, parsley, cilantro, dill, chives, mint, rosemary, sage, and thyme. For more ways to preserve your harvest, see this guide to fresh herb storage. Frozen herbs usually become soft after thawing, so they are best used in soups, sauces, stews, roasted vegetables, marinades, and other cooked dishes.

Essential Concepts

Freeze herbs while they are fresh. Dry them thoroughly before storage. Use airtight containers or freezer bags. Label each package with the herb and date. Add frozen herbs directly to cooked dishes.

Which Herbs Freeze Well?

Soft herbs with tender leaves generally freeze better than they dry. Good choices include:

• Basil
• Cilantro
• Parsley
• Dill
• Chives
• Mint
• Tarragon

Hardy herbs also freeze successfully, especially when removed from their stems:

• Rosemary
• Sage
• Thyme
• Oregano

Freezing preserves flavor, but it does not preserve the original texture. Thawed herbs will usually be limp. Use them in recipes rather than as a raw garnish.

How to Prepare Fresh Herbs for Freezing

Begin with herbs that are fresh, clean, and free of decay. Remove yellow or damaged leaves.

Rinse the herbs under cool water to remove soil and dust. Shake off excess water, then dry them thoroughly with a clean kitchen towel or salad spinner. Moisture left on the leaves can form ice crystals, which may reduce flavor and produce a mushy texture.

Remove thick stems when appropriate. Parsley and cilantro can be frozen with their tender stems, while rosemary and thyme are usually easier to use after the leaves have been stripped from the woody stems.

Method 1: Freeze Herbs in a Single Layer

This method works well for small leaves, chopped herbs, and sprigs.

1. Spread the dry herbs on a parchment-lined baking sheet.
2. Keep the herbs in a single layer.
3. Place the baking sheet in the freezer for one to two hours.
4. Transfer the frozen herbs to a freezer bag or airtight container.
5. Remove as much air as possible before sealing.
6. Label the container with the herb and freezing date.

Freezing the herbs separately first prevents them from forming one solid mass. You can then remove only the amount needed for a recipe.

Method 2: Freeze Chopped Herbs in Ice Cubes

Herb cubes provide measured portions for cooking. This method is useful for basil, parsley, cilantro, dill, chives, and other soft herbs.

1. Chop the dry herbs.
2. Fill each section of an ice cube tray about two-thirds full.
3. Add water, olive oil, or melted butter.
4. Freeze until solid.
5. Transfer the cubes to a labeled freezer bag or container.

Use water-based cubes in soups, stocks, and sauces. Use oil-based cubes for sautéed vegetables, pasta sauces, marinades, and skillet dishes. Butter-based cubes work well with potatoes, rice, cooked vegetables, and pan sauces.

Oil and butter can become rancid over time, so mark the freezing date and use these cubes within a few months. Keep them frozen until use.

Method 3: Freeze Herb Pesto

Pesto provides a convenient way to preserve basil and other soft herbs. A basic pesto may include herbs, olive oil, garlic, nuts, cheese, salt, and lemon juice.

Spoon the pesto into small containers or ice cube trays. Leave a little space for expansion, then cover tightly and freeze. Once solid, transfer individual portions to a freezer bag.

For better color, add the cheese after thawing. This also gives you greater control over the final texture. Thaw pesto in the refrigerator or add a frozen portion directly to hot pasta, soup, or cooked vegetables.

Method 4: Freeze Herb Paste

Herb paste requires only herbs and a small amount of oil.

1. Place washed and dried herbs in a food processor.
2. Add enough oil to form a thick paste.
3. Process until the mixture is finely chopped.
4. Spoon the paste into a small freezer container or ice cube tray.
5. Cover, label, and freeze.

Use the paste in dressings, marinades, sauces, grain dishes, soups, and roasted vegetables. A small amount of lemon juice can help preserve the color of delicate herbs, though it may alter the flavor slightly.

How Long Do Frozen Herbs Last?

Frozen herbs retain their best quality for about four to six months. They may remain safe to eat longer if kept continuously frozen, but their flavor and color will gradually decline.

Store herbs at 0°F or below. Use airtight packaging to limit freezer burn. Freezer burn does not usually make food unsafe, but it can produce dry, pale areas and a stale taste. The National Center for Home Food Preservation’s herb-freezing guidance provides additional storage information.

How to Use Frozen Herbs

Frozen herbs usually do not need to be thawed. Add them directly to:

• Soups
• Stews
• Pasta sauces
• Curries
• Rice dishes
• Omelets
• Roasted vegetables
• Braised meats
• Marinades
• Compound butter
• Salad dressings

Add delicate herbs near the end of cooking to preserve more of their flavor. Add hardy herbs earlier when a dish needs longer cooking time.

Frozen herbs are less suitable for salads, sandwiches, and finished plates because their texture changes after freezing. For these uses, fresh herbs or properly dried herbs are usually better.

How to Label Frozen Herbs

Every package should include:

• The herb’s name
• The storage method, such as water, oil, or pesto
• The freezing date

Clear labels prevent confusion, especially when several herbs look similar after freezing. Small portions also reduce waste because you can remove only what a recipe requires.

Common Mistakes to Avoid

Freezing Wet Herbs

Excess water creates ice crystals and weakens the leaves. Dry the herbs carefully before freezing.

Using Large Containers

Large containers encourage repeated thawing and refreezing. Divide herbs into recipe-sized portions.

Leaving Air in the Package

Air speeds flavor loss and freezer burn. Press excess air from freezer bags before sealing.

Expecting Fresh Texture

Frozen herbs soften after thawing. Plan to use them in cooked dishes.

Freezing Herbs That Are Already Wilted

Freezing does not restore quality. Use the freshest herbs available, and remove damaged leaves before storage.

Frequently Asked Questions

Can fresh herbs be frozen without blanching?

Yes. Most herbs can be frozen without blanching. Wash and dry them thoroughly, then freeze them in a single layer, in oil or water, or as a paste.

Is it better to freeze herbs in water or oil?

The best choice depends on how you plan to use them. Water works well for soups and stocks. Oil works well for sautéing, sauces, and marinades.

Can basil be frozen fresh?

Yes. Basil can be frozen as whole leaves, chopped leaves, pesto, or herb cubes. Oil-based storage often protects its flavor and color better than dry freezing.

Can frozen herbs be used as a garnish?

Usually not. Freezing changes the texture of most herbs. Use frozen herbs in cooked dishes, and reserve fresh herbs for garnishing.

Should frozen herbs be thawed before cooking?

Usually, no. Add them directly to the dish. Thaw pesto or herb paste in the refrigerator when you need to mix it into a cold preparation.

Can herbs be frozen in glass jars?

Yes, provided the jars are made for freezing and have sufficient space for expansion. Avoid filling jars completely, and do not place hot mixtures in the freezer.

How do you freeze rosemary and thyme?

Strip the leaves from the woody stems, or freeze small sprigs on a baking sheet. Once frozen, place them in an airtight container. Remove the leaves from the stems before adding them to a dish.

Can frozen herbs be refrozen?

Repeated thawing and refreezing lowers quality and may create food-safety concerns if the herbs remain at unsafe temperatures. Freeze herbs in small portions so you can use only what you need.