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    Home » Blog » Whole Food Recipes » Canning & Preserving Recipes » Canning Recipes

    September 9, 2015 | By Jami

    Water-Bath Safe Canned Roasted Tomato Sauce

    Jump to Recipe

    A wonderfully flavored canned roasted tomato sauce that is safe to preserve in a boiling-water canner to be shelf stable. Having jars of this sauce in your pantry makes amazingly easy weeknight dinners that also makes any day remind you of summer!

    Canned roasted tomato sauce

    Some links in this article are affiliate links and if you click on them I will receive a small commission at no cost to you.

    I'm super happy to be able to finally share this canned roasted tomato sauce that's safe for boiling water bath canning with you! I have been searching for awhile for a recipe to safely water-bath can roasted tomato sauce, similar to our family's favorite Roasted Tomato & Vegetable Sauce for Freezing, mainly for the convenience of having jars in the pantry ready to go for weeknight dinners. And this is a keeper for sure, taking a tested recipe and then adding the roasting step for the vegetables. It's SO good!

    Be Safe With Canning Tomato Sauce

    However I do have to caution that you've got to be careful when searching the internet. I found quite a few "recipes" that didn't list any specific amounts ("fill a pan with tomatoes, throw in a good handful of ______," etc.) and then gave instructions for water-bath canning with the addition of citric acid.

    Recipes like this are NOT considered safe by the USDA - adding citric acid to a concoction that is full of low-acid ingredients (olive oil, onions, garlic, fresh herbs and sometimes peppers), does not make it shelf-stable with boiling-water canning, especially when they're not even measured amounts (see this article for more information).

    I know that many people have canned this way for years, but in my opinion, it's just food and never worth even a possibility of sickness. (Note: there's a little more flexibility with sauces canned using a pressure canner, but it's still recommended that you use a tested recipe.)

    What About This Canned Roasted Tomato Sauce?

    Water-Bath Safe Canned Roasted Tomato Sauce

    Okay, off my soapbox! After all that searching, are you wondering how I came up with this boiling water safe canned roasted sauce? Good for you for questioning - we should definitely educate ourselves when it comes to feeding our families.

    Here's the deal: I searched and searched and couldn't find any roasted tomato sauce recipe that was safe for canning tomato sauce in a water bath canner. But then I wondered why I couldn't just take the tomato sauce recipe from the Ball Blue Book that I've canned many times and instead of boiling the tomatoes, roast them instead. All the measured ingredients would be the same, only the cooking method would change.

    This sounded like the solution to me, but to make sure I called the preservation hotline from our extension agency (Oregon State where I live) and asked them if they thought it would be okay. I told them I'd be sharing it with my blog readers - and they okayed the new cooking method! They just cautioned me to keep all the other low-acid ingredients the same and to be sure to include the addition of citric acid or lemon juice. Which I did, of course.

    And guess what? It worked great and gave this sauce that nice roasted flavor that our favorite freezer sauce has. This is the sauce I'd been looking for!

    How to Make Canned Roasted Tomato Sauce

    Steps to make a safe-to-can roasted tomato sauce.

    Besides enhancing the flavor, one of the other reasons I like to roast tomatoes for sauces is because I can skip the boiling-water-peeling step since it's easy to just pluck the darkened skins off after roasting. So even though it took 2 batches of roasting for this amount of sauce (I can only fit the three pans shown above in my oven at one time), it still took less time and work.

    Note: Removing the skins is specified in the original recipe, so that's what I do, but I leave skins on my favorite salsa and addictive tomato chutney, so you might choose to leave them on here. I haven't found research to say it will affect the acid ratio. Just be sure your tomatoes are really clean.

    So basically we're skipping the peeling and initial cooking part and replacing that with pans of roasted ingredients. After your ingredients are roasted, though, you do need to bring it to a boil so it's nice and hot for canning.

    After roasting, you transfer everything into a large stockpot (this actually makes it easy to roast more pans to finish the full recipe - the first batch can wait in the pot for the second batch to roast).

    When everything is roasted, I like to use my workhorse immersion blender to make a smooth sauce, but you can do it in batches with a blender or food processor, too - it's just messier. After all the ingredients are in a large stock pot and blended, it's just a matter of bringing to a boil again and then transferring to jars to can.

    Tools I use For this Recipe:

    • Food Scale
    • Immersion Blender
    • Stainless Steel Boiling Water Canner
    • Stainless Steel Canning Funnel
    • Stainless Steel Ladle
    • Pint Mason Jars and Lids

    A note on seeds: we don't mind seeds in the sauce and I do squeeze out quite a few when I'm prepping the tomatoes for roasting, but if you'd prefer a seedless sauce, you can strain the sauce after you've whirred it up - it's up to you.

    Here's a video on the simple steps for boiling water canning if you need:

    Or you can go to this article and read the steps with photos.

    Safe-to-can Roasted Tomato Sauce

    Oh, and I should mention that I took the in-process photos above before I realized that I should add all the other ingredients to the roasting pans first and then place the tomatoes on top of them. This makes it easier to pluck the skins off without losing any of the spices or other ingredients. Just in case you are, like, "hey that's not what's in the picture." Gotta keep you all on your toes!

    Canned roasted tomato sauce

    I hope you enjoy this as much as we do!

    Safe-to-can Roasted Tomato Sauce
    Print Recipe Pin Recipe
    4.69 from 121 votes

    Water-Bath Safe Canned Roasted Tomato Sauce

    A wonderfully flavored canned roasted tomato sauce that is safe to can in a boiling water canner to be shelf stable (adapted from Ball Blue Book's Seasoned Tomato Sauce* and checked by preservation specialists at Oregon State Extension Service)
    Prep Time2 hrs
    Cook Time1 hr 40 mins
    Total Time3 hrs 40 mins
    Course: Preserving
    Cuisine: Italian
    Yield: 7 pints
    Author: Jami Boys

    Ingredients

    • 23 pounds tomatoes a variety of paste, heirloom and cutting provides the best flavor & consistency
    • 2 tablespoons olive oil
    • 2 tablespoons balsamic vinegar optional, but adds amazing flavor
    • 3 cups chopped onions
    • 6 medium cloves garlic chopped**
    • 2 tablespoons canning salt
    • 1 tablespoons dried oregano***
    • 1 tablespoons dried basil***
    • 2 teaspoons black pepper
    • 1 teaspoons crushed red pepper flakes optional, but we love it
    • Citric acid or bottled lemon juice amounts needed for different size jars below

    Instructions

    • Heat oven to 425 degrees. Halving all ingredients to work in two batches, divide olive oil, balsamic vinegar (if using), onions, garlic, and dry seasonings between 2 or 3 roasting pans (what you have that will fit in your oven).
    • Wash tomatoes, remove cores and blossom ends, cut in half and squeeze gently to remove some of the seeds. Place tomatoes, cut side down, on top of ingredients in prepared pans.
    • Roast for about 40 minutes, turning once, until most of the tomato skins are puffed and browned. Remove from oven and pluck skins off with tongs (it's okay not to get every bit).
    • Scrape roasted vegetables into a large stockpot, set aside and repeat the prep and roasting with remaining half of ingredients (unless you are making just a half batch - then just proceed to next step).
    • Using an immersion blender, whir roasted ingredients until smooth (alternately, you can scrape from the roasting pans into a blender in batches and then add to the stockpot). If you'd like to strain to remove seeds, now is the time for that, too, using a wire mesh sieve.
    • Bring smooth sauce to a boil over med-high heat, lower heat and then simmer sauce until it reaches desired consistency, stirring often, about 45 minutes to 1 hour. You can adjust salt or dry seasonings to taste at this point if you wish.
    • Prepare a water-bath canner, jars, and lids.
    • Adding 1/4 teaspoon citric acid to pints (1/2 teaspoon to quarts) OR 1 tablespoon lemon bottled juice to pints (2 tablespoons for quarts), ladle the hot tomato sauce into hot jars, one at a time with 1/2-inch headspace. Wipe rims, attach lids and place in canner rack.
    • Process 35 minutes for pints and 40 minutes for quarts (if processing both pints and quarts together, use the longer processing time). Note: start the processing time after canner comes to a full boil and then adjust heat to keep a low boil for the timed amount.
    • Turn off burner, remove lid and set timer for 5 minutes to let jars rest in canner. Transfer jars from canner to a towel-lined surface and let cool 24 hours. Check seals, label & store for up to a year.

    Notes

    *The current editions of the Blue Book do not have this exact recipe that is in my 10-year-old book, but it is still considered safe and was okayed by the extension office to use. 
    **The tomatoes aren't roasted long enough to fully roast whole garlic cloves, so you'll want to chop them.
    ***Do not replace dried herbs with fresh, though you can increase or decrease the amounts given and add any other dried herbs you'd like.
    This recipe can easily be halved or even quartered, depending on how many tomatoes you have.
     

    Nutrition

    Serving: 1/2 cup | Calories: 83kcal | Carbohydrates: 16.1g | Protein: 3.5g | Fat: 1.8g | Saturated Fat: 0.2g | Cholesterol: 0mg | Sodium: 431mg | Fiber: 4.9g | Sugar: 10.4g
    Did you make this recipe?Mention @anoregoncottage or tag #anoregoncottage!

    Note for those just learning to can: click here for a step-by-step tutorial on water-bath canning.

    Other Canned Recipes With Tomatoes You May Like:

    The Best Thick and Flavorful Salsa for Canning

    Canned Green Chilies & Tomatoes (aka, Rotel)

    Canned Pizza Sauce (from frozen tomatoes)

    Addictive Tomato Chutney

     

     

     

     

    Disclosure: affiliate links in this article will earn commission based on sales, but it doesn't change your price. Click here to read my full disclaimer and advertising disclosure.

     

    About Jami

    Since 2009 Jami Boys has been helping readers live a simple homemade life through whole food recipes, doable gardening, and easy DIY projects on An Oregon Cottage. From baking bread, to creating a floor from paper, to growing and preserving food, Jami shares the easiest ways to get things done. She's been featured in Cottages and Bungalows, Old House Journal, and First for Women magazines as well as numerous sites like Good Housekeeping, Huffington Post, and Apartment Therapy.

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      Recipe Rating




    1. Kathleen says

      March 02, 2023 at 11:08 am

      Can you safely add green bell peppers to this recipe and still can it?

      Reply
      • Jami says

        March 03, 2023 at 10:28 am

        No, unfortunately peppers are a low acid vegetable so it would mess with the ratios that make this safe for canning.

        Reply
    2. Abi says

      September 27, 2022 at 11:31 am

      Hi Jami,
      I made a variation of this today, using a few different recipes. I did something kind of weird and didn't weigh my tomatoes until I had already started... So I don't have an accurate measured amount of tomatoes. I did aprx. 1 cup onion and 1 clove garlic, no oil, salt, or spices. The yield was 9 pints and 1 qt.
      I am guessing I did over 20 lbs based on my yield. I added 1/4 tsp citric acid to the pints and 1/2 tsp to the qt.
      Am I overthinking it to worry?

      Reply
      • Jami says

        September 27, 2022 at 3:49 pm

        Since you seem to have a lot more tomatoes than low acid (just the one cup of onion and 1 clove garlic), you should be okay with the citric acid added! I wouldn't worry about it if I were in your shoes, but I'd remember to weigh next time before. 🙂

        Reply
    3. Pam Riley says

      September 10, 2022 at 3:05 pm

      Jami, is it safe to add tomato paste for canning this wonderful sauce? My tomatoes were extra juicy, and it's been simmering for hours with little reduction or thickening. This is the third year I'm making this sauce. I even taught myself to can from your post.
      Thank you very much!

      Reply
      • Jami says

        September 13, 2022 at 12:32 pm

        Wow, I'm so thrilled that I helped in your canning journey, Pam!
        Unfortunately, it's not safe to add tomato paste unless the recipe has been tested for it since it thickens the sauce which may affect the amount of time needed for processing.
        When I've had sauce that wouldn't thicken (well, in the amount of time I had, lol), I will note on the lid to add tomato paste when heating it.

        Reply
    4. Karen says

      September 02, 2022 at 2:27 pm

      Can we add sugar to this recipe? If so, how much would be safe?

      Reply
      • Jami says

        September 06, 2022 at 11:25 am

        Yes, you can add as much as you want as sugar is just for taste and wouldn't affect the acid ratio.

        Reply
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    Hi, I'm Jami and I'm so glad you're here! My desire is to help you live a simple homemade life through delicious whole food recipes, easy organic gardening and preserving your harvest.

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