There’s just something about a warm, velvety tomato soup that feels like a hug in a bowl. Add to that the satisfaction of canning your own soup at home, and you’ve got the perfect recipe for both comfort and convenience. Imagine the aroma of roasted tomatoes filling your kitchen, the deep caramelized sweetness mingling with garlic and herbs, and then sealing that flavor into jars you can enjoy all year long. That’s exactly what we’re diving into today-a roasted tomato soup canning recipe that’s as practical as it is delicious.
This isn’t just about food; it’s about capturing the peak of summer tomato season and preserving it for those chilly days when fresh produce is a distant memory. By the end of this, you’ll know exactly how to make a soup that’s rich, tangy, and smooth, and how to can it safely for your pantry.
Roasted Tomato Soup Canning Recipe
This recipe combines the natural sweetness of roasted tomatoes with the savory punch of garlic, onions, and just the right blend of herbs. Once blended into a silky soup, it’s ladled into jars and processed for shelf stability.
The beauty of this method is that you can make big batches when tomatoes are abundant (and affordable) and then pull out a jar whenever the craving strikes.
Ingredients Needed
Here’s what you’ll need to make about 6-7 pint jars of roasted tomato soup:
- Fresh tomatoes – about 10 pounds, preferably Roma or plum tomatoes (they roast beautifully and have less water content).
- Onions – 2 large, roughly chopped.
- Garlic – 8-10 cloves, peeled.
- Olive oil – ¼ cup, for roasting.
- Carrots – 3 medium, peeled and diced (adds natural sweetness).
- Celery – 2 stalks, diced (for depth of flavor).
- Tomato paste – 3 tablespoons, to enrich the tomato flavor.
- Chicken or vegetable broth – about 6 cups, depending on consistency preference.
- Fresh herbs – basil, thyme, or oregano (a handful of each, but you can mix and match).
- Salt & pepper – to taste, added after roasting.
- Bottled lemon juice – 1 tablespoon per pint jar (for safe canning acidity).
Cooking Instructions
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Prep The Tomatoes
- Wash and halve the tomatoes. Lay them cut-side up on baking sheets.
- Add onions and garlic cloves to the same sheets.
- Drizzle generously with olive oil, sprinkle with salt and pepper.
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Roast The Veggies
- Roast at 400°F (200°C) for 35-40 minutes, until tomatoes are soft, skins blistered, and edges slightly caramelized.
- The roasting step is where the magic happens-the sweetness deepens, and the soup develops its signature flavor.
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Cook Down The Base
- In a large stockpot, sauté diced carrots and celery for 5-7 minutes until softened.
- Add roasted tomatoes, onions, garlic, and tomato paste. Stir well.
- Pour in broth and simmer for about 20-25 minutes.
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Blend Into Soup
- Use an immersion blender for convenience, or transfer in batches to a high-powered blender until silky smooth.
- Return to pot, adjust seasoning with salt and pepper.
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Prepare For Canning
- Heat jars and lids in hot water.
- Ladle hot soup into jars, leaving 1-inch headspace.
- Add 1 tablespoon bottled lemon juice per pint (this is essential for safe canning acidity).
- Wipe rims clean, place lids and rings on snugly.
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Process In Pressure Canner
- Because this is a low-acid food, it must be pressure canned (not water bath canned).
- Process pints at 10 pounds pressure (adjust for altitude) for 20 minutes.
- Let pressure drop naturally before opening.
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Cool & Store
- Place jars on a towel, undisturbed, for 12-24 hours.
- Check seals before storing in a cool, dark pantry.
Ingredient Insights
- Tomatoes: Romas are king for canning because they’re meatier and less watery. Cherry tomatoes can be used, but they’ll make a sweeter soup.
- Carrots & celery: Not just filler-these build a flavor base that keeps the soup balanced.
- Lemon juice: This isn’t optional. Bottled lemon juice ensures consistent acidity for safety. Fresh lemons can vary in acid level, which makes them unreliable for canning.
- Broth choice: Vegetable broth keeps it vegetarian-friendly, but chicken broth adds richness.
- Herbs: Fresh herbs are best for flavor, but if you only have dried, add them earlier in the simmering step so they have time to release their oils.
Expert Tips
- Don’t skip the roasting step: It intensifies the tomato flavor far more than just simmering.
- Consistency check: If your soup feels too thick, thin with extra broth before canning. If too thin, simmer longer before blending.
- Batch prep: Double the recipe when tomatoes are at peak season-you’ll thank yourself later.
- Label your jars: Include the date canned; while properly sealed jars can last 12-18 months, they’re best enjoyed within the first year.
- Freeze option: If canning feels overwhelming, this soup also freezes beautifully in freezer-safe containers.
Recipe Variations
Here’s where you can have some fun with the recipe once you’ve mastered the base version:
- Creamy Tomato Soup: When serving, stir in a splash of heavy cream, coconut milk, or even cream cheese for a luscious twist. (Don’t add cream before canning-it affects safety and shelf life.)
- Spicy Tomato Soup: Add a couple of roasted red peppers or a pinch of red chili flakes to the roasting pan.
- Smoky Depth: A teaspoon of smoked paprika gives the soup a subtle smoky note.
- Rustic Chunky Style: Instead of blending completely smooth, pulse just enough to keep some texture.
- Italian-Inspired: Stir in roasted bell peppers and extra oregano and basil for a more Mediterranean feel.
Final Words
Canning homemade roasted tomato soup is about more than just food storage-it’s about bottling up a season and creating convenience in your future. There’s something deeply satisfying about lining up jars of soup on a pantry shelf, knowing each one is a homemade, healthy, and flavor-packed meal waiting to happen.
This is one of those recipes where a little effort upfront rewards you tenfold later. A pot of soup can be simmered in an hour or two, but those jars will last you through the coldest months.
FAQs
Can I Safely Can Roasted Tomato Soup At Home?
Yes, roasted tomato soup can be safely canned at home, but it is crucial to follow proper pressure canning methods. Tomatoes are acidic, but soups with added vegetables, dairy, or thickening agents often require pressure canning to prevent bacterial growth.
Do I Need A Pressure Canner Or Can I Use A Water Bath Canner?
For roasted tomato soup containing only tomatoes, onion, garlic, and herbs, a water bath canner is usually sufficient. However, if your recipe includes low-acid ingredients like cream, milk, or potatoes, a pressure canner is required for safety.
How Long Can I Store Canned Roasted Tomato Soup?
Properly canned roasted tomato soup can be stored in a cool, dark place for up to 12-18 months. For best flavor, consume within one year. Always check seals and look for signs of spoilage before use.
Should I Add Salt Or Sugar When Canning Roasted Tomato Soup?
Salt and sugar are optional in canning for flavor, but they are not preservatives. You can adjust them according to taste, but do not rely on them for food safety.
Can I Use Fresh Tomatoes Or Do I Need Canned Tomatoes?
Fresh, ripe tomatoes work best for roasting and canning. Choose firm, blemish-free tomatoes. Canned tomatoes can be used if fresh tomatoes are unavailable, but they may slightly alter the soup’s flavor.
Do I Need To Peel And Seed The Tomatoes Before Roasting?
Peeling and seeding tomatoes is recommended for a smoother texture and better soup consistency. Roasting them first makes the skins easier to remove.
How Do I Prevent The Soup From Separating After Canning?
Blend the soup thoroughly before canning to ensure uniform consistency. Avoid adding dairy or thickening agents before canning; instead, add cream, milk, or flour after opening the jar when reheating.
What Jar Size Is Best For Canning Roasted Tomato Soup?
Pint jars (16 oz) are ideal for canned soup because they allow for easier heating and prevent wastage. Quart jars can be used if serving larger quantities, but they may take longer to heat.
Do I Need To Adjust The Acidity Of The Soup Before Canning?
Adding lemon juice (about 1 tablespoon per pint) or vinegar (1 tablespoon per pint) is recommended to ensure safe acidity, especially if your soup includes low-acid ingredients. This helps prevent bacterial growth.
How Should I Reheat Canned Roasted Tomato Soup?
After opening, transfer the soup to a pot and heat on the stovetop over medium heat until it reaches a gentle boil. If desired, add cream or seasoning at this stage. Never reheat in the sealed jar.