This canning tomato soup recipe is pure summer magic bottled up for those cozy winter nights when you need a taste of sunshine!
I’ll never forget the first time I popped open a jar of my home-canned tomato soup in the middle of January. The kitchen filled with the smell of fresh tomatoes and basil, and suddenly it felt like August again.
That’s the beauty of canning your own tomato soup. You get to capture peak tomato season and enjoy it all year long—no weird additives, no metallic can taste, just pure tomato goodness.
Today I’m walking you through exactly how to make and safely can the most delicious tomato soup. Let’s do this!
Table of Contents
Why You’ll Love This Canning Tomato Soup Recipe
This isn’t your average canned tomato soup. This is the good stuff.
First off, you control exactly what goes in it. Fresh tomatoes, real herbs, no mystery ingredients. When you see what’s actually in store-bought canned soup, you’ll never go back.
The process is surprisingly simple. If you can boil water and follow some basic safety steps, you can totally do this. I promise it’s not as intimidating as it sounds!
Plus, this recipe makes a slightly concentrated soup base. That means you can customize it every time you open a jar—add cream for richness, thin it with broth for a lighter version, or keep it as-is for pure tomato flavor.
And can we talk about pantry goals? Having rows of homemade tomato soup lined up means easy lunches, quick dinners, and the ultimate comfort food is always within reach.
Let’s Talk Ingredients
The magic starts with the tomatoes. You’ll want paste tomatoes like Romas for this recipe. Why? They’re meatier and have less water, which means your soup thickens up beautifully without adding any weird thickeners.
I learned this the hard way. My first batch used super juicy heirloom tomatoes. Gorgeous? Yes. But I spent hours reducing that soup. Romas are your friend here!
The onion adds sweetness and depth. Yellow onions are perfect, but honestly? Use what you have. I’ve made this with white onions and red onions, and it’s delicious every time.
Brown sugar might surprise you, but it’s essential. It balances the acidity of the tomatoes without making the soup taste sweet. Just trust me on this one.
The herb situation: I use dried oregano, basil, bay leaves, celery seed, and granulated garlic. Dried herbs are important here because fresh garlic can’t be safely canned without high acidity. We’re keeping this shelf-stable and safe!
Lemon juice or citric acid is non-negotiable for safe canning. Don’t skip it! The good news? You won’t taste it. It just makes sure your soup stays safe on the shelf for up to a year.
How This Canning Tomato Soup Comes Together
Here’s the beautiful thing about this recipe: the process is totally doable, even if you’ve never canned before.
You’ll start by cooking your quartered tomatoes and diced onion together until everything is soft and falling apart. This takes about 30 minutes to an hour. Put on some music, pour yourself a drink, and stir occasionally.
Once everything’s super soft, you’ll blend it smooth. I use my high-powered blender and work in batches. Pro tip: let the tomatoes cool slightly first so you don’t end up with tomato soup on your ceiling. (Ask me how I know.)
Then comes the fun part—seasoning! You’ll add all your herbs and spices, plus that tomato paste for extra richness.
Now you’ll reduce the soup. This is where patience pays off. You want it slightly thicker than regular soup because remember, you’ll thin it when you serve it. Mine usually takes about an hour of gentle simmering.
While that’s happening, get your canning jars ready. Wash them, keep them warm, and prep your water bath canner.
The actual canning part? Super straightforward. Add lemon juice to each jar, fill with hot soup, wipe the rims, add lids, and process in the water bath for 40 minutes.
That’s it! You’ve got shelf-stable soup that’ll last up to a year.
Serving Your Home-Canned Tomato Soup
This is where you get to have fun and make it your own!
The classic way? Heat up a jar, stir in some cream or milk, and serve with a grilled cheese sandwich. This combo is chef’s kiss perfection.
Want it lighter? Thin it with chicken broth or vegetable stock instead of dairy. Still delicious, but won’t weigh you down.
For a fancy twist, swirl in some pesto before serving. Or top with fresh basil and a drizzle of good olive oil. Croutons? Always a good idea.
I love making tomato soup shooters for parties—just heat it, keep it creamy, and serve in small glasses with mini grilled cheese on the side. Trust me, they’ll disappear fast!
Storage & Shelf Life
Once your jars have cooled and sealed properly (you’ll hear that satisfying “ping!”), remove the rings and check the seals.
Store sealed jars in a cool, dark place for up to one year. That’s a whole year of summer tomatoes!
If a jar didn’t seal, no worries. Just pop it in the fridge and eat it within a week.
Once you open a jar, refrigerate any leftovers and use within 4-5 days. The soup reheats beautifully on the stove or in the microwave.
Your Canning Questions Answered
Do I really need to add lemon juice?
Yes! Different tomatoes have different acidity levels. Lemon juice ensures your soup is safe for shelf storage. Don’t worry—you won’t taste it.
Can I use citric acid instead of lemon juice?
Absolutely! Citric acid doesn’t change the flavor at all. I use ¼ tsp per pint jar or ½ tsp per quart. However, if you add dairy when serving, lemon juice works better (less milk separation).
Can I pressure can this instead of water bath?
You can! Just follow your pressure canner’s instructions for tomato products. Most folks prefer water bath because it’s simpler.
My soup is too thick. Help!
That’s actually perfect! Remember, this is a concentrated base. Just thin it with milk, cream, broth, or water when you reheat it.
What if I forgot the lemon juice and already processed the jars?
Unfortunately, you’ll need to either refrigerate those jars and use quickly, or dump everything back in a pot, reheat, add lemon juice, and reprocess with new lids. Safety first!
More Recipes You’ll Love
Once you master this canning tomato soup recipe, try these other preserving projects:
Now go make this! Your future self will thank you when you’re opening these jars on cold winter nights.
Made it? I’d love to hear how it turned out! Leave a comment below and let me know what you thought. And don’t forget to rate the recipe—it helps other readers find it too. ♡
Happy canning, friends!
— Marina
Canning Tomato Soup Recipe
Ingredients
Equipment
Method
- Prep the tomatoes: Wash tomatoes and remove any blemishes or soft spots. Quarter the tomatoes and dice the onion.
- Cook vegetables: Place quartered tomatoes, diced onion, and ½ cup water in a large soup pot. Cook uncovered over medium heat for 30-60 minutes, stirring occasionally, until tomatoes are very soft and breaking down.
- Cool slightly: Remove from heat and let cool for 10-15 minutes. This prevents dangerous splattering when blending.
- Puree: Working in batches, carefully transfer the warm tomatoes to a blender or food processor. Puree until smooth. (Optional: press through a fine-mesh sieve to remove any remaining seeds or skins.)
- Return to pot: Pour smooth tomato puree back into your large soup pot. Using a wide-bottomed pot speeds up the reducing process.
- Season the soup: Add tomato paste, brown sugar, oregano, basil, bay leaves, granulated garlic, salt, celery seed, and black pepper. Stir well to combine.
- Reduce: Bring to a gentle simmer over medium-low heat. Cook uncovered for about 1 hour, stirring occasionally, until soup has reduced and thickened to slightly thicker than your desired serving consistency.
- Prepare canning equipment: While soup reduces, wash canning jars in hot soapy water and keep warm. Prepare your water bath canner by filling it with water and heating.
- Taste and adjust: Once soup has thickened, taste and adjust salt if needed.
- Add acid to jars: For EACH pint jar, add 1 Tbsp bottled lemon juice (or ¼ tsp citric acid). For EACH quart jar, add 2 Tbsp lemon juice (or ½ tsp citric acid). This step is crucial for safe canning!
- Fill jars: Using a canning funnel, ladle hot soup into hot jars, leaving ½ inch headspace at the top.
- Remove air bubbles: Slide a non-metallic utensil (wooden chopstick works great!) along the inside of each jar to release trapped air bubbles.
- Wipe rims: Use a clean, damp cloth to wipe the rim of each jar. Any soup residue can prevent proper sealing.
- Apply lids: Center a new lid on each jar and screw on the ring fingertip tight (don't overtighten!).
- Process: Place jars in water bath canner, ensuring they're covered by at least 1 inch of water. Bring to a full rolling boil and process for 40 minutes (for both pints and quarts). Adjust time for altitude if needed.
- Cool: After processing, turn off heat and let jars sit in canner for 5 minutes. Then carefully remove jars and place on a towel-lined counter. Don't disturb for 12-24 hours.
- Check seals: After cooling, press the center of each lid. If it doesn't flex, it's sealed! Remove rings for storage.
- Store: Label with date and store sealed jars in a cool, dark place for up to 1 year.
Notes
Recipe Notes
Altitude Adjustments for Water Bath Processing:- 0-1,000 ft: 40 minutes
- 1,001-3,000 ft: 45 minutes
- 3,001-6,000 ft: 50 minutes
- Above 6,000 ft: 55 minutes
- Always use bottled lemon juice, not fresh. Fresh lemon juice has variable acidity and isn’t safe for canning.
- Do not add flour, cornstarch, or dairy products before canning. These aren’t safe for home canning.
- Do not use fresh garlic. Garlic needs high acidity to can safely; use granulated garlic or garlic powder only.
- Never skip the lemon juice or citric acid. It ensures safe acidity levels.
