Tomato soup, a comforting classic, tastes even better when made from scratch and preserved for year-round enjoyment. This comprehensive guide will walk you through everything you need to know about canning tomato soup, from selecting the perfect tomatoes to mastering the safe canning process. We'll even address some frequently asked questions to ensure your canning journey is a success.
Choosing the Right Tomatoes for Canning
The foundation of any great canned tomato soup lies in the quality of the tomatoes. Avoid using tomatoes that are bruised, overripe, or showing signs of disease. The best tomatoes for canning are typically Roma tomatoes, known for their low moisture content and firm flesh, which results in a richer, less watery soup. However, you can also use other varieties like heirloom tomatoes, adding a unique flavor profile to your canned soup. Remember to wash your tomatoes thoroughly before beginning any preparation.
Preparing Tomatoes for Canning: Blanching and Peeling
Proper preparation ensures a smooth, appealing texture in your final product. Blanching is crucial for easy peeling. Simply plunge tomatoes into boiling water for about 30 seconds to a minute, then immediately transfer them to an ice bath. This temperature shock loosens the skin, making it easy to peel off. Once peeled, you can chop or puree your tomatoes according to your chosen recipe.
Classic Canned Tomato Soup Recipe
This recipe yields approximately 7 pints of delicious tomato soup:
Ingredients:
- 12 pounds ripe tomatoes (Roma or your preferred variety), peeled and chopped
- 1 large 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 (or water)
Instructions:
- Heat olive oil in a large pot over medium heat. Sauté onion and garlic until softened, about 5 minutes.
- Add chopped tomatoes, basil, oregano, salt, and pepper. Bring to a simmer and cook for at least 30 minutes, stirring occasionally, until tomatoes have softened.
- Puree the soup using an immersion blender or carefully transfer in batches to a regular blender.
- Stir in vegetable broth (or water) to adjust consistency.
- Ladle the hot soup into sterilized pint jars, leaving ½ inch headspace. Remove air bubbles and wipe jar rims clean.
- Place lids and rings on jars and process in a boiling water bath for 35 minutes (adjust processing time based on your altitude; consult the latest USDA Complete Guide to Home Canning).
What is the best way to store canned tomato soup?
Once your jars have cooled completely and sealed properly, store them in a cool, dark, and dry place. Properly canned tomato soup should have a shelf life of 12-18 months. Always check for bulging lids or any signs of spoilage before consumption.
How long does canned tomato soup last?
As mentioned above, properly canned tomato soup, processed correctly and stored appropriately, will last for 12-18 months. However, it's always best to consume it within a year for optimal flavor and quality.
Can I freeze tomato soup instead of canning it?
Yes, freezing tomato soup is a viable alternative to canning, offering a simpler process. However, the texture might be slightly altered upon thawing. Freeze the soup in freezer-safe containers, leaving some headspace for expansion. Frozen tomato soup typically lasts for 3-6 months.
What are the benefits of canning tomato soup?
Canning tomato soup allows you to preserve the bounty of the harvest, enjoying homemade goodness throughout the year. It’s a cost-effective way to stock your pantry and a rewarding way to connect with traditional food preservation methods. Additionally, you have complete control over the ingredients, ensuring a healthy and delicious product free from additives and preservatives.
Can I add other vegetables to my canned tomato soup?
Absolutely! Experiment with adding carrots, celery, zucchini, or other vegetables to enhance the flavor and nutritional value of your canned tomato soup. Just remember to adjust cooking times as needed to ensure vegetables are tender.
This detailed guide provides a solid foundation for successfully canning your own delicious tomato soup. Remember to always consult the most up-to-date USDA Complete Guide to Home Canning for safety guidelines and processing times specific to your altitude. Happy canning!
