How To Freeze Tomatoes For Cooking Later

Sharing is caring!

If you’ve ever ended garden season with a kitchen full of tomatoes but not enough for canning, freezing them is the perfect solution. It’s quick, simple, and keeps that garden-fresh flavor ready for soups, sauces, and casseroles all winter long.

The best part is you don’t need any special canning equipment or hours in the kitchen — just a freezer, a few bags or containers, and a little space to store them.

Helpful to know: Freezing changes the texture of tomatoes, but not the taste. Once thawed, they’ll be soft, which makes them perfect for cooking but not for slicing and eating fresh.

Why Freeze Tomatoes Instead of Canning

There are often times when freezing makes more sense than canning as a preservation method. Maybe you need to focus on canning something else, or you don’t have enough for a full canner load. Or maybe — in my experience — you’ve simply run out of energy after weeks of preserving and just need to save those last tomatoes before they go to waste.

Freezing tomatoes:

• Saves time when you can’t can right away
• Let’s you preserve smaller batches without heating up the kitchen
• Keeps the flavor and nutrients intact with very little prep

Here’s what I do: When canning season is winding down and fall is near, I’m out of energy. So I freeze the last of the late tomatoes. Then, when it’s cold outside, I have them ready to thaw and use in homemade soups or sauces.

How to Choose the Best Tomatoes for Freezing

Not all your tomatoes will freeze well. Choose only firm, ripe fruits that are free from cracks, bruises, or soft spots.

Best  varieties for freezing: 

• Roma, San Marzano, or Amish Paste – meaty with less water
• Cherry or slicing tomatoes – fine for soups and stews
• Heirlooms – excellent flavor, just expect a softer texture after thawing

Good to Know: Soft or damaged tomatoes tend to form ice crystals and won’t last as long in the freezer. So plan to eat these quickly. 

How to Prepare Fresh Tomatoes for the Freezer

How you prepare tomatoes for the freezer depends on how you plan to use them later. These two simple methods are the safest and most effective ways to freeze fresh tomatoes.

Whole tomatoes (fastest method)

• Rinse and lay the tomatoes out to dry.
• Spread them in a single layer on a baking sheet and place in the freezer until firm — I usually leave them overnight.
• Once frozen solid, carefully transfer them one by one into freezer bags or containers.
• Remove as much air as possible, label, and return to the freezer.

Helpful to know: Freezing them on a baking sheet first keeps the tomatoes from sticking together once bagged.

Diced or pureed tomatoes (recipe-ready portions)

This method isn’t quite as simple as freezing whole tomatoes, but it’s worth the extra step. Diced or pureed tomatoes are recipe-ready — perfect for soups, sauces, chili, or casseroles later on. Trying to dice frozen whole tomatoes isn’t easy, so it’s best to do the chopping before they are frozen.

• Core and chop the tomatoes into bite-sized pieces, or pulse them a few times in a food processor for a smoother texture.
• Measure out portions before freezing. Two cups equals about one 28-ounce can, while one cup is close to a 14-ounce can. Having both sizes ready makes cooking later much easier.
• Pour the tomatoes into freezer containers, silicone molds, or quart-size freezer bags. TIP: If using bags, lay them flat on a baking sheet so they freeze in a thin layer.
• Label, date, and store them in the freezer. Once frozen solid, the flat bags can be stacked upright or on top of each other to save space.

Here’s what I do: I freeze diced tomatoes in quart-size bags, each filled with about 2 cups. Once I press out the air, I lay them flat in the freezer so they stack neatly and take up less space. When I need one, I grab a bag, thaw it, and pour it straight into my recipe. If I’m making chili or soup in the crock pot, I toss them in frozen — no thawing needed. 

Do You Need to Peel Before Freezing

Fortunately, peeling isn’t necessary when freezing tomatoes. Once they’re frozen and begin to thaw, the skins will slip off easily — no boiling water or ice baths needed.

If you prefer smoother sauces or soups, remove the skins after thawing. Just hold each tomato under warm running water, and the peel will slide right off.

For chunkier dishes like chili, stew, or casseroles, leaving the skins on is perfectly fine and saves time. The skins will soften as they cook and blend into the dish.

Helpful to know: If you’re planning to can later, you’ll still need to peel before canning. But for freezer storage, peeling is completely optional.

Or, if you like the idea of using freezing as a peeling shortcut, see my guide Freezing The Fastest Way to Peel Tomatoes for an even easier method.

Basic Storage Tips

Use freezer-safe containers or heavy-duty freezer bags. Flatten the bags before freezing to save space and make stacking easier.

Leave about 1 inch of headspace in each container. The contents will expand as they freeze, and that extra room prevents lids from popping or bags from bursting.

Keep in mind: Always label with the date and quantity. It’s easy to forget what’s inside after a few months.

• Storage life: 8–12 months for best quality
• Temperature: Keep at 0°F or lower
• Avoid: Packing wet tomatoes — pat them dry to keep ice buildup from forming, which can lead to freezer burn.

Once your tomatoes are packed, labeled, and safely stored in the freezer, you’re all set until you need them. The next step is knowing how to thaw and use those frozen tomatoes when it’s time to cook.

How to Thaw and Use Frozen Tomatoes

When you’re ready to cook, you can thaw frozen tomatoes a few different ways depending on your recipe.

• Overnight in the refrigerator: Set the bag or container in a bowl to catch any juices as it thaws.
• Quick thaw: Place the sealed bag in a bowl of cool water for 30–60 minutes. ( I use my kitchen sink filled with water)
• No-thaw option: Add frozen tomatoes straight to soups, sauces, or chili — they’ll melt down as they cook.

As tomatoes thaw, they’ll release extra liquid. If you’re using them for weeknight meals, you can ladle off a little of the juice before cooking to save time. For canning or slow-cooked sauces, you can either ladle off the liquid or simmer longer until the sauce thickens to your liking.

Helpful to know: About 2 cups of frozen tomatoes equals one 28-ounce can of store-bought tomatoes. If a recipe calls for a smaller 14-ounce can, use 1 cup instead.

Frozen tomatoes work beautifully in recipes like Homemade Spaghetti Sauce for Canning or Homemade Pizza Sauce for Canning. They’re also great in chili, stew, or tomato soup when you want that fresh-from-the-garden flavor in the middle of winter.

Common Mistakes and How to Avoid Them

We’re all busy and it’s easy to rush when preserving food, but slowing down just a little can make a big difference in the quality of your frozen tomatoes. Here are a few mistakes I’ve made (and seen plenty of others make) — along with how to avoid them.

• Using underripe or overripe tomatoes – These won’t freeze well. Underripe ones lack flavor, and overripe ones tend to get mushy and watery. Choose firm, ripe fruit for best results.
• Overpacking bags – Too much in one bag traps air and leads to freezer burn. Fill bags only about three-quarters full so you can press the air out easily.
• Skipping labels – Trust me, frozen tomatoes all look the same after a few months. A quick date and quantity note saves a lot of guessing later.
• Expecting fresh texture – Frozen tomatoes will always soften once thawed, and that’s okay. They’re perfect for cooking, just not for slicing.

Here’s what I do: I keep a permanent marker in the drawer beside my freezer bags so I can label them before filling. It takes seconds, and I never have to wonder what’s in each bag later.

Taking a few extra minutes during prep will save you a lot of frustration when you’re pulling dinner together when it’s cold and dark outside.

Related Resources

Want to learn how to grow and harvest your own tomatoes? Visit my Vegetable Gardening for Beginners Guide for step-by-step help from planting to harvest.

Looking for more preservation methods? You’ll find canning, dehydrating, and freezing tutorials in my Complete Home Canning Resource.

Final Thoughts

Freezing tomatoes for cooking later is one of the simplest ways to stretch your garden harvest so nothing goes to waste. It’s a quick, no-pressure option that still lets you enjoy the taste of homegrown tomatoes all year long.

Whether you grow just a few plants or a big garden patch, this easy method keeps your freezer stocked and your meals tasting fresh, even in the middle of winter.

If you’d like to learn more about preserving your harvest, check out my Comprehensive Food Preservation Guide or Canning Garden Workbook for step-by-step help.

More Ways to Preserve Tomatoes

If you found this helpful, you may also like:

• Freezing: The Fastest Way to Peel Tomatoes – how to slip skins off frozen tomatoes in seconds
• How to Peel Tomatoes for Canning – step-by-step blanching method for canning prep
• How to Can Tomato Juice – a great option if you have lots of ripe tomatoes to use up
• Homemade Spaghetti Sauce for Canning – turn those frozen tomatoes into a hearty sauce later

Sharing is caring!