Freezing Whole and Diced Tomatoes (Storage Guide)

Freeze sound, ripe tomatoes at 0°F (−18°C) or colder, either whole or diced. Wash and dry them, remove stems and damaged spots, then pack them in freezer-safe bags or containers. Leave ½ inch of space in rigid containers, or press excess air from bags. Use them within 8–12 months for best quality; thawed tomatoes are soft, so save them for cooked dishes.

As tomatoes ripen in late summer and early fall, you may have more than you can use fresh. Freezing is a simple way to save sound, ripe fruit for soups, sauces, and stews. It needs little equipment, and blanching is optional.

The main change to expect is texture. Freezing breaks down tomato cells, so thawed tomatoes soften and release liquid. In my cooking lessons, I explain this before anyone chooses a storage method: frozen tomatoes work well in many cooked recipes, but not in dishes that depend on fresh, firm slices.

Select, Wash, and Prepare Tomatoes

Choose sound, ripe tomatoes and prepare them promptly for freezing. Washing removes surface dirt, while trimming stems and damaged spots helps you pack clean fruit. Decide whether to freeze tomatoes whole or diced based on how you plan to cook with them later.

Wash tomatoes under running water and dry them with a clean towel. Remove the stems and cut away damaged areas. Do not freeze moldy, spoiled, or badly damaged tomatoes; freezing does not make spoiled produce safe.

For whole tomatoes, you can leave the skins on or peel them first. For diced tomatoes, remove the core and cut the flesh into pieces before packing. Pieces of similar size are easier to portion and are ready to add to recipes.

Peeling is optional because skins can be removed after thawing. If you prefer to peel tomatoes before freezing, immerse them in boiling water for 30–60 seconds, then transfer them to ice water. The skins should loosen enough to peel; remove the cores afterward. Blanching is not required for freezing.

Think about the amount you usually use in one recipe. Packing in meal-size portions can make it easier to take only what you need and keep the rest sealed. Next, choose whether to freeze the prepared tomatoes on a tray or pack them directly.

Freeze Whole or Diced Tomatoes

Freezing means bringing prepared tomatoes to 0°F (−18°C) or colder and keeping them frozen. You can freeze whole tomatoes or diced pieces. A tray-freezing step helps keep pieces separate, while direct packing uses fewer steps and works well when you do not need individual pieces.

For tray freezing, spread whole tomatoes or diced portions in a single layer on a tray. Leave a little space between pieces so they do not freeze into one large mass. Place the tray in the freezer until the tomatoes are firm, then transfer them to freezer bags or containers.

If you are short on space or expect to use a full portion at once, pack tomatoes directly into freezer-safe bags or rigid containers. Keep the package size suited to your recipes. Diced tomatoes can be measured into portions before freezing, while whole tomatoes can be packed in the amount you expect to use.

Freeze tomatoes promptly after preparation. Set the freezer to 0°F (−18°C) or colder, and keep packages in the freezer rather than letting them sit out. If you are unsure whether your freezer is set cold enough, check its temperature setting or use an appliance thermometer.

Tray freezing is a convenience, not a safety requirement. Direct packing is also suitable when the tomatoes will be used as one solid portion in a cooked dish. Choose the method that fits your space and cooking habits.

Package, Label, and Maintain Quality

Good packaging limits air exposure and helps protect frozen tomatoes from freezer burn and odors from other foods. Use bags or containers made for freezer storage, close them securely, and label each package with its contents and date. Clear labels make it easier to use older packages first.

For rigid freezer containers, leave ½ inch (1.3 cm) of headspace between the tomatoes and the lid. Headspace is the empty space that allows for expansion as food freezes. Avoid filling the container to the brim.

For freezer bags, press out excess air before sealing. Spread the contents into a flat layer if the bag shape allows, then seal it fully. A well-sealed bag can also be easier to stack than a bulky container.

Write “whole tomatoes” or “diced tomatoes” on the label, along with the date they were frozen. For best quality, aim to use frozen tomatoes within 8–12 months. This is a quality guideline, not a food-safety cutoff for tomatoes that have stayed continuously frozen at 0°F (−18°C) or colder.

Keep packages sealed until you are ready to use them. Opening and closing a bag repeatedly can expose the remaining tomatoes to air and odors. If you freeze several portions, use smaller packages so you can take out what you need without repeatedly opening a large one.

Thaw and Use in Cooked Dishes

Thaw tomatoes in the refrigerator at 40°F (4°C) or below, or add them to a dish while still frozen. Do not thaw them on the counter. Because frozen tomatoes soften and release liquid, plan to use them in cooked dishes rather than recipes that need fresh, firm texture.

For refrigerator thawing, place the sealed package in a dish or container to catch any liquid as it softens. Keep it refrigerated at 40°F (4°C) or below. If a recipe does not require thawed tomatoes, you can add them frozen to soups, sauces, or stews instead.

Whole tomatoes may be easier to handle after they have thawed slightly. If you want to remove the skins, peel them after thawing. Diced tomatoes can go straight into a pot or pan if the recipe can accommodate the extra liquid.

Tomatoes often release liquid during thawing. For a thicker sauce, drain some of that liquid before cooking, or simmer the dish until it reaches the texture you want. Keep the liquid if your recipe benefits from extra moisture or tomato flavor.

Do not plan on using thawed tomatoes in salads or other dishes that rely on a crisp, fresh texture. The softness is a normal result of freezing, not a sign that the tomatoes were packed incorrectly. Choose a cooked recipe to make the most of them.

Practical Freezer Scenarios

These examples show how to match a freezing method to a common kitchen need. They are practical planning scenarios, not claims that one method is best for every cook. Consider the space available, the amount you use per recipe, and whether you need separate pieces or a ready-to-use portion.

You have several ripe tomatoes and want flexible portions. Core and dice them, spread the pieces in one layer on a tray, freeze until firm, then move them to a labeled bag. This makes it easier to take out a smaller amount without thawing the whole batch.

You usually cook a whole tomato into a sauce. Freeze sound tomatoes whole, either on a tray first or directly in a freezer bag. Remove skins after thawing if desired, then add the tomatoes to the pot.

You want to save freezer space. Pack tomatoes directly into a freezer-safe bag, press out excess air, seal it, and lay it flat to freeze. This skips the tray step, though the contents may freeze together.

You are unsure how much liquid a recipe can take. Thaw the tomatoes in the refrigerator and drain some liquid if the cooked dish needs a thicker result. Keep more liquid for soups or stews that can use it.

Quick Storage Reference

This table gathers the key choices and limits in one place. Use it as a check before sealing a package: the right preparation depends on whether you want whole or diced fruit, while temperature, headspace, and safe thawing guidance apply to either form.

Label every package with its contents and date. For best quality, use the tomatoes within 8–12 months.

Frequently Asked Questions

These answers cover the most common decisions about freezing, storing, and using tomatoes. The main points are simple: freeze sound fruit promptly, keep it at 0°F (−18°C) or colder, and expect a softer texture after thawing.

Can you freeze tomatoes whole?
Yes. Wash and dry sound, ripe tomatoes, remove stems and damaged areas, then freeze them whole in a freezer-safe bag or container.

Can you freeze diced tomatoes without cooking them first?
Yes. Dice washed, prepared tomatoes and freeze them raw. Blanching is not required.

Do tomatoes need to be peeled before freezing?
No. Peeling is optional. You can remove the skins after thawing if you prefer.

How much headspace should I leave?
Leave ½ inch (1.3 cm) in rigid freezer containers to allow room for expansion. In bags, press out excess air before sealing.

What temperature should the freezer be?
Keep it at 0°F (−18°C) or colder. Freeze tomatoes promptly after preparation.

How long can frozen tomatoes be stored?
For best quality, use them within 8–12 months. This is a quality guideline, not a safety cutoff for food kept continuously frozen at the recommended temperature.

Can I put frozen tomatoes straight into a recipe?
Yes. Add them frozen to cooked dishes such as soups, sauces, and stews if the recipe can take the extra liquid.

How should I thaw frozen tomatoes?
Thaw them in the refrigerator at 40°F (4°C) or below. Do not thaw them at room temperature.

Why are thawed tomatoes soft and watery?
Freezing ruptures tomato cells. As the tomatoes thaw, their texture softens and liquid is released.

Can I use thawed tomatoes in a salad?
They are generally unsuitable for salads or other dishes that need fresh, firm texture. Use them in cooked dishes instead.

Conclusion

Freezing whole or diced tomatoes is a straightforward way to save ripe fruit for later cooking. Wash and prepare sound tomatoes, freeze them promptly, package them with the right space or air removal, and keep them at 0°F (−18°C) or colder.

Choose whole tomatoes for easy storage or diced portions for quick cooking. Label packages, aim to use them within 8–12 months for best quality, and thaw them in the refrigerator when needed. For a thicker result, drain excess liquid; for soups and stews, add the tomatoes frozen if convenient.

(This article was written by one of our staff writers, Daniel M. Whitaker. Visit our Meet the Team page.)