Canning your own tomato soup is a rewarding experience, allowing you to savor the taste of summer all year round. This comprehensive guide walks you through a simple yet effective recipe, ensuring your canned soup is both safe and delicious. We'll cover everything from selecting the perfect tomatoes to mastering the canning process, addressing common questions along the way.
What kind of tomatoes are best for canning tomato soup?
The best tomatoes for canning are those with a high acid content and a rich, robust flavor. Roma tomatoes, with their meaty texture and lower water content, are a popular choice. However, you can also use a mix of tomatoes, including heirloom varieties, for a more complex flavor profile. Just remember to ensure a proper balance of acidity.
How do I prepare tomatoes for canning soup?
Preparing your tomatoes efficiently is crucial. First, wash and core the tomatoes. Then, you have two main options:
- Chopping: Roughly chop the tomatoes into chunks. This method is quicker and results in a chunkier soup.
- Pureeing: Blend the tomatoes until smooth. This creates a creamier, smoother soup.
Regardless of your chosen method, removing seeds and skins is optional but can improve the texture of your final product.
Canning Tomato Soup Recipe (Yields approximately 7 pints)
Ingredients:
- 12 cups (approximately 6 pounds) ripe tomatoes, prepared as described above
- 1 medium onion, chopped
- 2 cloves garlic, minced
- 2 tablespoons olive oil
- 1 teaspoon dried basil
- 1 teaspoon dried oregano
- ½ teaspoon salt
- ¼ teaspoon black pepper
- 1 cup vegetable broth (optional, for thinner soup)
Equipment:
- 7 pint-sized canning jars and lids
- Large pot for cooking the soup
- Canning pot and rack (for water bath canning)
- Jar lifter
- Ladle
Instructions:
- Prepare Jars: Sterilize your jars and lids according to the instructions on your canning equipment.
- Sauté Aromatics: Heat the olive oil in a large pot over medium heat. Add the chopped onion and sauté until softened, about 5 minutes. Add the minced garlic and cook for another minute until fragrant.
- Simmer Tomato Mixture: Add the prepared tomatoes, basil, oregano, salt, and pepper to the pot. Stir well. If using, add the vegetable broth for a thinner consistency. Bring the mixture to a simmer and cook for 20-30 minutes, stirring occasionally, until the tomatoes have softened.
- Fill Jars: Carefully ladle the hot soup into the sterilized jars, leaving ½ inch headspace at the top. Remove any air bubbles by running a clean knife or spatula around the inside of the jar.
- Process Jars: Wipe the rims of the jars clean and place the lids and rings on securely. Place the jars in a canning pot with a rack, ensuring they're covered with at least 1 inch of water. Bring the water to a rolling boil, then process for 35 minutes (for pints) at a consistent boil.
- Cool and Check: Carefully remove the jars from the pot using a jar lifter and let them cool completely undisturbed. You should hear a “pop” as the jars seal. Check the seals by pressing down on the center of each lid. If the lid doesn't flex, it's sealed.
Important Note: Always follow safe canning practices and refer to your local Cooperative Extension Service or the National Center for Home Food Preservation for detailed instructions on canning procedures. Failure to follow proper canning procedures can lead to spoilage and foodborne illness.
How long does canned tomato soup last?
Properly canned tomato soup, stored in a cool, dark, and dry place, can last for 12-18 months. Always check the seal before consuming and discard any jars that show signs of spoilage, such as bulging lids or a sour smell.
Can I freeze tomato soup instead of canning it?
Yes, you can freeze tomato soup. Simply allow the soup to cool completely before transferring it to freezer-safe containers, leaving some headspace for expansion. Frozen tomato soup will typically last for 3-6 months.
What can I do with leftover tomato soup?
Leftover canned tomato soup is incredibly versatile. Use it as a base for pasta sauces, add it to stews, or simply enjoy it as a comforting meal on its own. You can also use it as a base for gazpacho or other cold tomato-based soups.
By following this detailed recipe and adhering to safe canning practices, you can enjoy delicious homemade tomato soup all year round. Remember to always prioritize safety when canning and refer to reputable sources for detailed instructions. Happy canning!
