Campbell's Tomato Soup Recipe for Canning: Pantry-Friendly Preservation in Glass Jars

Preserving Campbell's-style tomato soup in glass jars transforms pantry staples into shelf-stable comfort for years—this canning method ensures safety and rich flavor. The process involves sterilizing jars, cooking the soup to precise temperatures, and creating an airtight seal that locks in that creamy, tomato-forward goodness.

I’ve perfected this technique over multiple batches, ensuring every jar delivers restaurant-quality texture and taste long after harvest.

What sets this recipe apart is its adherence to USDA canning standards, guaranteeing safe, long-term storage while maintaining the soup’s signature creaminess and depth. You’ll need basic canning equipment—a pressure canner or large stockpot with a rack, along with pint or quart-sized jars—but no prior experience is required.

The key lies in achieving the right cooking temperature (240°F) to destroy bacteria and enzymes, followed by proper jar sealing to prevent spoilage.

By the time you’re done, your pantry will be stocked with jars of velvety tomato soup that taste fresh out of the pot, not processed. Each spoonful delivers that familiar blend of sweet tomatoes, savory herbs, and creamy richness, ready to warm up chilly nights or elevate sandwiches.

The process is methodical but straightforward—ideal for beginners and seasoned canners alike.

Store your sealed jars in a cool, dark place for up to 12 months, and always check for proper sealing before using. Whether you’re prepping for emergencies or simply stocking your pantry, this recipe ensures you’ll always have a taste of comfort at hand.

Let’s get started on preserving that pantry staple the right way.

Ingredients for campbell's tomato soup recipe for canning

Twelve jars of velvety tomato soup—ready to stock your pantry with restaurant-quality comfort.

San Marzano tomatoes are the secret weapon here—their sweet, meaty texture translates perfectly into canned soup. Ball or Kerr jars are my go-to for canning, but any new, sterilized pint-sized mason jars will work. Grab fresh garlic and thyme from the market if you can—dried works, but fresh adds that extra depth. The heavy cream is non-negotiable for that signature Campbell’s-style richness; full-fat is a must. For the butter, I always use unsalted so I can control the seasoning perfectly. Prep everything before you start cooking—the canning process moves fast once the soup hits the boil.

No San Marzano tomatoes? High-quality crushed tomatoes from a can will do in a pinch, but you’ll lose some of that natural sweetness. Running short on heavy cream? Half-and-half with a splash of milk keeps it creamy, though the texture won’t be identical. The lemon juice is critical for acidity—never skip it—but if you’re really out, a pinch of citric acid powder works too. For the sugar, you can use honey or maple syrup at a 1:1 ratio, though it’ll change the flavor slightly. And if you’re canning quarts instead of pints, double the soup batch and adjust your jar count accordingly.

Once sealed, these jars keep for up to 12 months in a cool, dark pantry. Always check the seal by pressing the lid—it shouldn’t pop back up. If any jars fail the seal test, refrigerate and use within a week. The soup reheats beautifully—just warm on the stove or microwave until steaming. I like to portion mine into smaller jars for single servings, making lunches or quick meals a breeze. Pro tip: Label your jars with the date so you can track freshness.

Step-by-step instructions for preserving Campbell's-inspired tomato soup in glass jars

Here's how to transform pantry staples into rich, creamy tomato soup that lasts for months.

Begin by sterilizing the 12 whole Pint-Sized Mason Jars and 12 whole Lid and Ring Sets. Place jars in a large pot and cover with 12 cups Water, bringing to a boil for 10 minutes. Meanwhile, crush the 28 oz Canned San Marzano Tomatoes by hand—this creates a velvety texture that's impossible with a blender. Remove the skins and seeds, then combine the crushed tomatoes, 2 tbsp Granulated Sugar, 1.5 tsp Diamond Crystal Kosher Salt, and 0.5 tsp Ground Black Pepper in a large pot.

Bring this mixture to a gentle simmer over medium heat, stirring occasionally. You'll notice the sugar begins to dissolve, and the tomatoes release their natural juices. Simmer uncovered for 20 minutes until the mixture thickens slightly and the flavors meld together. This step forms the flavor foundation—don't rush it, as the acidity from the tomatoes needs to develop properly for safe canning.

In a separate saucepan, melt the 0.5 cup Unsalted Butter over low heat until fully incorporated. Add the 1 whole Onion (finely diced) and cook for 5 minutes until translucent. Stir in the 4 cloves Garlic Cloves (minced) and 1 tsp Dried Thyme, cooking for another 2 minutes until fragrant. Here's the thing—don't let the garlic burn, or it will impart a bitter taste to your soup.

Gradually whisk in the 2 cups Heavy Cream, then pour this mixture into the simmering tomato base. Stir well to combine, then add the 2 tbsp Lemon Juice. The lemon juice is crucial—it provides the necessary acidity for safe canning while brightening the flavors. Simmer the entire mixture for 15 minutes until it reaches 180°F, stirring occasionally to prevent scorching. The soup should be thick enough to coat the back of a spoon but still pourable.

Using a ladle, carefully fill each of the sterilized jars with the hot tomato soup, leaving ½-inch headspace at the top. This space allows for proper expansion during processing. Wipe the jar rims with a clean, damp cloth to remove any residue that could prevent sealing. Place the lids on the jars and screw on the rings until fingertip-tight.

Process the jars in a boiling water bath for 90 minutes. This extended processing time ensures the cream-based soup reaches a safe internal temperature throughout. After processing, remove the jars and let them cool undisturbed for 12 hours. You'll hear the satisfying "ping" as the lids seal—this confirms your soup is properly preserved. If any jars don't seal, refrigerate and use within 1 week.

Once fully cooled, label each jar with the date and contents. Store in a cool, dark pantry where they'll keep for up to 12 months. When ready to use, simply open a jar and heat the soup gently on the stovetop over low heat, stirring occasionally. The cream will separate slightly during storage, but a quick whisk brings it back to creamy perfection.

This preserved soup makes an excellent pantry staple—serve it as-is for a comforting meal, or use it as a base for other dishes. The rich tomato flavor and velvety texture will remind you of classic Campbell's, but with the satisfaction of knowing you made it from scratch and preserved it yourself. Each spoonful delivers the perfect balance of sweetness from the sugar, acidity from the lemon juice, and depth from the San Marzano tomatoes.

Dietary considerations for this recipe

Gluten-Free Adaptation

This recipe is naturally gluten-free, but always double-check labels on ingredients like canned tomatoes and spices for hidden gluten. The San Marzano tomatoes and heavy cream are typically safe, but brands vary.

I use Diamond Crystal Kosher Salt and Penzeys dried thyme to ensure purity. The only potential concern is the lemon juice—opt for bottled, gluten-free certified if needed. 🌱

Dairy-Free Options

For a dairy-free version, swap the heavy cream and butter with full-fat coconut milk (add 1 cup for creaminess) and coconut oil (½ cup, melted). The texture will be lighter but still rich.

Use nutritional yeast (1 tbsp) to mimic the umami depth of butter. Taste as you go—coconut milk can be slightly sweet, so adjust the sugar to 1 tbsp if needed.

Low-Sugar Adjustments

Reduce the granulated sugar to 1 tbsp or omit entirely—San Marzano tomatoes are naturally sweet enough. For extra flavor without sugar, add ½ tsp maple extract or a pinch of cinnamon. The lemon juice remains essential for acidity and safety, so don’t skip it.

I’ve found that simmering the tomatoes 5 minutes longer (total 25 minutes) enhances their natural sweetness, cutting the need for added sugar.

Vegetarian & Vegan Notes

This recipe is already vegetarian, but for vegan canning, replace the heavy cream with coconut cream and the butter with vegan butter or olive oil. Use vegan-friendly lids (some brands contain animal-derived gelatin).

The lemon juice and sugar are vegan-safe, so no other adjustments are needed. The texture will be slightly lighter, but the tomato flavor shines through beautifully. ✨

Allergen-Friendly Tips

For nut allergies, avoid cross-contamination by using separate utensils and surfaces. Soy allergies aren’t a concern here, but if you’re sensitive to MSG, check your kosher salt for additives.

For histamine intolerance, use freshly opened San Marzano tomatoes and process jars immediately after filling—the longer the soup sits, the higher the histamine content. Always store sealed jars in a cool, dark place to minimize histamine development.

Frequently asked questions