In this post I show you how to can spaghetti sauce. All those tomatoes ripen at once and this is one way to preserve your harvest.
Last year we had SO many tomatoes. I quickly found recipes for several different things that had tomatoes as the main ingredient that I could can. Spaghetti sauce was one of those. I would like to share with you how to can spaghetti sauce.
Is it safe to can spaghetti sauce?
Yes. It is safe to can spaghetti sauce. Tomatoes have a high acidity level and can be canned in a water bath. A little lemon juice added to the jar can increase the acidity level to insure that it is safe to eat.
Does spaghetti sauce need to be pressure canned?
No. Because of the tomatoes high acidity level, it can be canned in a water bath. Lemon juice will insure that the acidity level is high enough.
How long will canned spaghetti sauce last?
If canned properly, it will be safe to eat for at least 5 years. However, it may lose some of its flavor after 2 years.
- 32 lbs of tomatoes
- 16 Tbsp olive oil
- 16 tsp garlic powder
- 16 tsp onion powder
- 8 tsp kosher salt
- 1/4 cup olive oil
- 3 large onions, diced
- 18 cloves garlic, minced
- Sauce from roasted and milled tomatoes (should be about 168 oz)
- 36 oz tomato sauce
- 4 Tbsp dried oregano
- 4 Tbsp dried basil
- 2 Tbsp Kosher salt
- 2 Tbsp sugar
- 1 1/2 tsp crushed red pepper
- 3 cups chicken (or vegetable) stock
- 12 Tbsp lemon juice, divided
- Preheat oven to 275. Line sheet pan with foil.
- Wash and cut tomatoes in quarters. (I do this in batches. Usually 6.)
- Place tomatoes on sheet pan.
- Drizzle olive oil over tomatoes. (2 Tbsp per batch)
- Sprinkle garlic powder, onion powder, and salt over tomatoes. (You can eye ball the amount.)
- Roast in oven for 3 hours.
- Remove from oven and allow to cool.
- Once you have roasted all the batches, put tomatoes through food mill. The one I recommend is at the bottom of this recipe.
- Once you have processed all the tomatoes, set sauce to the side.
- In large pot, saute onions in olive oil until tender. Add garlic and saute for about 30 seconds longer.
- Add remaining ingredients except the lemon juice.
- Cook for at least 45 minutes.
- While spaghetti sauce is cooking, fill water bath with water about 1/2 full. Bring to a boil.
- Fill a small pot with water and heat over medium heat. Place lids and rings in this pot. You don't want to boil these because the lids are now bpa free and will break down if boiled. You won't get a good seal if they have broken down. I heat them until the water is steaming and then turn it to low.
- Add 2 Tbsp lemon juice to each quart jar (1 Tbsp for pint jars). Fill with spaghetti sauce leaving 1/4" head room. Wipe rim and place lid and ring on. This does not need to be tight. Hand tightening is enough. Place in water bath pot. Repeat until you have filled all the jars.
- Water in water bath should be 1 - 2 inches above the jar tops. If it is not, add more water. Bring water bath back to a boil and allow to process for 45 minutes.
- Remove jars using a jar lifter and place on a towel on the counter or table. I have had issues with the jars leaving marks on my table. So I put a towel down, then a board, then another towel Allow to sit for at least 12 hours. Do not check the lids for sealing until the jars have cooled completely. Touching the top could artificially seal it and cause problems later. Jars often pop when sealing, but not always.
- Once jars have cooled completely, run your finger over the top to feel for a divot. If the center of the lid pushes up and down, it is not sealed. You can either put it in your fridge to use soon, or you can remove the sauce, put in a fresh clean & sterile jar and process again.
- After all jars have sealed, remove rings and store. Leaving the rings on can also cause an artificial sealing. When using the sauce later, be sure to check the seal once more. If the center of the lid moves up and down, do not use the tomatoes
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Let’s talk a moment about clean & sterile jars. There are a couple ways to accomplish this.
- Wash the jars, place them in a large pan of water on the stove and boil them. Pull out one jar at a time as you use it.
- Run the jars through the dishwasher with a heat dry cycle. Pull one jar out at a time as you use them. Make sure to shut the dishwasher door quickly to keep jars warm.
I prefer method 2 because my stove is not very big and I already have 3 other pans on the stove.