Canning tomato soup is a great way to preserve the flavors of summer for year-round enjoyment. Whether you grow your own tomatoes or purchase them in bulk, canning tomato soup is a cost-effective and easy way to create a pantry staple that you can use in a variety of dishes.
Although you can strain them out later, it is easiest to deseed and peel the tomatoes first in a food mill.Chop tomatoes into pieces large enough to fit in your food mill or juicer.We use our Kitchenaid with the vegetable juicer attachment.After you run the tomato chunks through the first time, run the discarded seeds and skins through a couple more times.You’ll get a lot of extra juice.
28 cups tomato juice
Once the tomatoes are done, add them to a large stock pot.
Peel onion and cut into quarters. Rough chop carrots.
1 medium onion, 1 cup carrots
Rough chop celery.
1 cup celery
Peel garlic.
2 cloves garlic
Add all of the vegetables to the bowl of your food processor.
Process them until finely chopped.
Add the vegetables to the tomatoes in the stock pot with the sugar.Bring to a boil. Reduce heat to a fast simmer, until the water content is reduced. Usually about 2 hours.
¼ cup sugar
Chop the fresh herbs, if using.
¼ cup parsley, ¼ cup basil
Add the chopped herbs and spices. Cook for about 30 minutes more.
1 teaspoon oregano, dried
To can soup
Prepare lids and jars while the soup is cooking.Start your water bath canning pot or set up your pressure canner, according to manufacturer’s instructions.
Add 1 tablespoon of bottled lemon juice to pint jars and 2 tablespoons to quart jars.Do not skip the lemon juice, if you’d like the jars to be shelf-stable. Add salt to jar, unless you added it when making the soup.
1 tablespoon Bottled Lemon Juice, 1 teaspoon salt
Ladle hot soup into hot jars. leaving a ½ inch headspace. Remove bubbles, if needed. Wipe rims with damp, clean kitchen cloth or paper towel.
Center warm lids on jars with the aid of your canning funnel. Screw on bands fingertip tight.
Either process jars in a water bath canning pot for 40 minutes for pints. Adjust time for altitude. See notes below.
Or process jars in a pressure canner for 20 minutes at 11 PSI (pounds per square inch) for pints. Again, you must adjust for altitude, see notes below.
Once processed, remove lid from canning pot. Allow jars to rest in hot water for about 5 minutes.
Remove the jars from the canning pot with a jar lifter and let them sit undisturbed for 12-24 hours until thoroughly cooled.
Check lids for seal. Press lid in the center, if it flexes up or down, the jar has not sealed and should be stored in the refrigerator and used first.
Notes
Estimated calories are for a pint of soup.Do not thicken soup with flour, cornstarch, or dairy products before canning. If you would like creamy tomato soup, add cream just before eating.Adjustment for altitude if water bath canning0-1000 feet above sea level - 35 minutes1000-3000 feet - 40 minutes3000-6000 feet - 45 minutes6000+ feet - 50 minutesAltitude adjustments for Dial Gauge Pressure canner Pints or Quarts - process for 15 minutes0-2000 feet - 11psi2000-4000 - 12psi4000-6000 - 13psi6000+ - 14psiAltitude adjustments for Weighted Gauge Pressure cannerProcess pints or quarts 15 minutes0-1000 feet - 10psi1000+ - 15psiSee the article above for pro tips, uses, and step-by-step process photos.