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You are here: Home / Can / Canning Tomato Sauce

Canning Tomato Sauce

August 8, 2016 by Jenny Gomes 6 Comments

This post will share the recipe and a complete tutorial for canning tomato sauce at home. It is and continues to be one of my most popular posts and I have updated it for you all with additional instructions AND another video to help you even more.

Canning Tomato Sauce

Oh, canning tomatoes! Canning tomato sauce is one of the most satisfying tasks a home canner could ask for because of the versatility of tomato sauce. When people start preserving, they often make jam because it is fairly simple and of course delicious but I find the savory preserves, like this tomato sauce, are far more useful.

If I had to can ONE recipe for the rest of my life, it would be tomato sauce.

Canned tomato sauce can be dinner in about 5 minutes: Just open a jar of sauce, warm, and pour on top of pasta.

By investing an hour or two to can a batch of tomato sauce now, you can have a dozen or more jars of sauce ready to be transformed into:

  • Tomato soup (just add a little cream!)
  • Pizza sauce
  • bread stick dip
  • Spaghetti sauce
  • Stromboli filling
  • Lasagna
  • Spaghetti squash topping
  • Sauce for roasted vegetables like eggplant
  • Stew and crock pot meals
  • Sloppy Joe’s
  • and more!

 

Before you get started, download the canning cheatsheet so the whole process will be a breeze!

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This post may contain affiliate links. All opinions are my own.

 
Canning Tomato Sauce: Peel and Process Using a Food Mill | A Domestic Wildflower click to read the recipe and watch the canning tutorial video and see how easy canning can be!

Canning Tomato Sauce

This recipe requires the canner to peel the tomatoes first, then cook them into a sauce. I hate dropping tomatoes (or peaches, etc) into boiling water for several reasons. I don’t want another pot of boiling water on the stove, I am terrible at keeping track of how long the tomato has been submerged, and I always try to peel when the tomatoes are too hot and it scorches my fingertips. It can be a big, wet, hot mess. However, it is desirable if you don’t have a food mill and if you desire a completely skin free product.

To process tomatoes with a food mill:

I slice the end of the Roma (a more dense, less watery tomato variety suited for saucing) and then just rough chop the rest of the tomato and put it raw into the top of my food mill, with the largest plate in the bottom.

A food mill is a very handy thing that I think all kitchens should have. Mine was gifted to me by a wonderful friend at my baby shower, with the intention of making mushed up baby food, which I did use it for, but it is so useful beyond that, this sauce being an excellent example. It has a plate that is much like a cheese grater and a mechanism for pressing the food into the grater so the result in the bowl below is a very smooth sauce. They are popularly used for applesauce and think they are much better than a blender. They are also all metal and non-electric which means they will last pretty much forever. Here’s mine:

Put the chopped tomatoes into the hopper of the food mill and when it is nearly full, start turning the handle. The skin and some seeds are kept above while perfectly smooth sauce drips below. I have mine set atop the pot in which I will cook the sauce, so I don’t dirty another bowl, but the rubberized “legs” will grip onto a wide variety of bowls.

This technique can be applied to any tomato recipe as long as it isn’t imperative that it be completely skin or seed free (I’m sure there are a few bits of skin in my sauce).

This step isn’t a lot faster, I wouldn’t say, but it dirties fewer bowls (a big concern in my tiny kitchen) and isn’t as sweaty.

Blender Method

You could use a blender to puree tomatoes if they are thin skinned. Place cored, chopped tomatoes into blender and puree smooth. Pour into preserving pan. 

To peel tomatoes using boiling water method

This method requires you to fill a large pot with hot water. Bring to a boil. Have a bowl filled with ice water on the nearby countertop. While the water is heating, core the tomatoes with a knife. When the water is boiling, and with a slotted spoon handy, drop the tomatoes in the boiling water one or two at a time. Keep an eye on the clock and after about 1 minute, the skins will start to split. After the skin has split and is starting to peel back from the flesh, remove it from the boiling water and drop into the bowl of ice water. Repeat with all tomatoes. Remove from the ice water one tomato at a time and peel the skins with your fingers. Compost the skins.

Tomato Sauce Canning Recipe

Here’s the recipe that I use to work up 12-pound batches of Romas, that usually yields 4-5 pints (1 pint =2 measuring cups)

12 pounds peeled tomatoes

1 tablespoon olive oil

12 ounces onion, diced (about 2 small or 1 large)

2 large cloves of garlic

2 teaspoons salt, or to taste

about 2 teaspoons citric acid

In a wide preserving pan, heat the oil and saute the onions on medium high for about five minutes. Add the garlic and saute for another five. Combine the peeled tomatoes with the alliums and cook on medium high for about 45 minutes, until the sauce has thickened and darkened in color. Add salt to taste. Stir occasionally and beware of the sauce boiling over the edge.

Add 1/2 teaspoon citric acid to each hot jar that is removed from the waterbath. Ladle boiling sauce into sterilized jars (I like wide mouth pints for this recipe, but use what you have) add lids and rings, and process in a waterbath for 35 minutes. If you are unfamiliar with waterbath canning see this excellent USDA resource here. 

There you have it, Wildflowers! Please share in the comments below what you think of using the food mill versus the boiling water and peel method. I’m eager to hear your thoughts!

If you are ready to learn how to can this season, head to www.startcanning.com and enroll in the e course for busy beginners. There I will SHOW you in a way a cookbook cannot how to Start Canning!

Enroll Now!

If all this tomato talk has you eager to learn more, here’s a beautiful and informal infographic to educate you further so you can head to the market and choose your next red gems with confidence in regards to their best use.
Tomato, Tomahto: When and How to Use Different Tomato Varieties infographic from the article: Canning Tomato Sauce: Peel and Process Using a Food Mill | A Domestic Wildflower click to read the recipe and watch the canning tutorial video and see how easy canning can be!


“Tomato, Tomahto” on Health Perch

Still feeling uncertain getting started? Here’s a great resource to help!

This Acid & Canning Guide lists all the pH values for foods you might want to can (tomatoes included!) so you can see that you are canning foods that are safely acidic enough to water bath can.
 

Get the Acid & Canning Guide Here!

Download the acid & canning pH guide for free here!<script async id=

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Comments

  1. Lorrie says

    June 8, 2016 at 10:05 am

    I noticed your recipe calls for citric acid. I thought tomatoes had enough acid as is. No?

    Reply
    • Jenny says

      June 13, 2016 at 12:09 pm

      Tomatoes are NOT acidic enough. Years ago, they were a bit more acid but hybrids now are bred to be sweeter, among other things, so citric acid is a must.

      Reply
  2. Beth says

    September 1, 2016 at 7:25 am

    I’ve always used a food mill for doing tomato sauce – in fact my mom gave me a second one for Christmas so now I can have two of us grinding which will make huge pots of apples turn to sauce much quicker. I’ve never done or read about running the tomatoes through the mill prior to cooking. Interesting. I’ve always done it after they’ve cooked up. I just cut off the blossom end and in bigger ones cut them in half, filled a big pot with them and cooked them until they are soft and squishy then run them through the mill and then back in the pot and cook the sauce down adding seasonings etc at that point. Then fill my quarts and process. I use lemon juice instead of citric acid – works well.

    Reply
    • Jenny says

      September 1, 2016 at 8:03 am

      So Beth, as an expert, tell me: what would be really valuable? Would you like an experts Facebook group? New tools and techniques posts? Recipe inspiration?

      Reply
  3. Margy says

    November 30, 2016 at 8:58 pm

    I don’t have a food mill so I used my grandmothers wooden pestle and sieve. After cooking the tomatoes down they were easy to press to remove pulp and seeds. I don’t process a lot, so this works well for me. – Margy

    Reply
  4. Ibra B Osa says

    February 13, 2019 at 4:24 pm

    Do you have any other low carb canning recipes? I would love to get some new ones.

    Thanks,

    Ibra

    Reply

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