My husband came in from outside the first time I was canning spaghetti sauce, smiled and said the house smelled like an Italian restaurant – a good Italian restaurant. I had to agree.
This sauce takes a while to cook, but the end result is delicious! It’s great for pasta, pizza or topping spaghetti squash. Gluten free and meatless (you can add meat just before serving if you like).
We take you through the recipe step by step with photos, plus share tips for working with frozen tomatoes, and a print friendly version of the recipe at the bottom of the post.A good homemade spaghetti sauce recipe for canning is a must in our house, because many store bought spaghetti sauces use ingredients like genetically modified high fructose corn syrup and soybean oil – not things we normally eat.
I start a batch in the morning, and slow cook it while I’m working on other things in the kitchen, like prepping the rest of the ingredients and canning equipment. Paste tomatoes yield a thicker sauce with less cooking, but you can use any tomatoes that you have available.
NOTE: Unlike plain tomato sauce, you do need to use a pressure canner for canning this spaghetti sauce recipe, since it contains low acid ingredients like oil and onions. See “How to Can Food at Home – Quick Guide to Safe Home Canning” for a review of the basics.
The homemade spaghetti sauce recipes with lemon juice added to make them safe for water bath canning taste like lemons to me, not tomatoes. I’ve tried them, but I can’t recommend them.
Spaghetti Sauce Recipe for Canning with Fresh Tomatoes – Step By Step Instructions
(Scroll down to bottom of post for print friendly version of recipe.)
My favorite canning spaghetti sauce recipe is adapted from The Encyclopedia of Country Living by Carla Emery. This recipe is very close to the“Spaghetti sauce without Meat” recipe listed on the National Center for Home Food Preservation website, so you know it’s a safe canning recipe.
Salt and pepper can be adjusted to taste. It’s okay to substitute an equal amount of fresh basil for some of the celery, green peppers or mushrooms.
You can also cut this spaghetti sauce recipe in half or to a fourth. Just keep the processing time the same, or freeze the marinara sauce in freezer bags or freezer safe containers instead of canning.
When we’re ready to serve the spaghetti sauce, we open a jar and heat it up, or brown some ground beef or Italian sausage and add the sauce to the skillet.
Ingredients
- 30 pounds tomatoes
- 1/4 cup butter or olive oil
- 1 cup chopped onions
- 5 minced garlic cloves
- 2 tablespoons salt
- 1 cup chopped celery or green pepper
- 1 pound sliced mushrooms (optional)
- 2 teaspoons black pepper
- 2 tablespoons oregano flakes
- 1/4 cup minced parsley
- 1/4 cup brown sugar or unrefined cane sugar
Directions
Wash 30 pounds of tomatoes. Remove cores and quarter tomatoes.
Cook 20 minutes, uncovered, in large pan or pans to soften tomatoes. I cook mine at a strong simmer in an assortment of heavy bottom stainless steel pans. I have also used a Nesco roaster.
Thick bottom pans prevent accidental scorching, frequent stirring is recommended. Don’t use aluminum – it will react with the acid in the tomatoes. When I cook on the stove top, I start with four pans and cook the sauce down to one 8 quart stockpot.
Put tomatoes through a food strainer or food mill. I have a Back to Basics food strainer that works beautifully. Years ago I used a chinoise strainer, and I still use it for small batches, but for large batches the food strainer can’t be beat. It’s so much faster!
Cook down tomatoes to reduce volume and make a thicker sauce. We start with four pots and end up with one. This is the base of your spaghetti sauce.
While the tomato sauce is cooking, you can do the rest of the prep work, like chopping the rest of your veggies, filling the canner, and getting the lids and jars ready.
My pressure canner uses three quarts of water, to which I add one tablespoon of white vinegar to reduce hard water build up on the jars. I wash my jars in the dishwasher and keep them hot until I’m ready to fill.
I keep my lids in hot water in a one quart saucepan (do not boil lids), and use kitchen tongs for lifting them out of the water. The latest generation of canning lids from Ball do not require preheating, but I have a stock of lids that I am still working through.
To Finish the Spaghetti Sauce for Canning
Saute in 1/4 cup butter or olive oil until tender: onions, garlic, celery or green pepper, and mushrooms. Combine sauteed vegetables and tomatoes. Add salt, black pepper, oregano, parsley and sugar.
Bring to a boil. Stir frequently to avoid burning. Reduce heat to simmer, keep hot while waiting to process.
Canning the Spaghetti Sauce
Fill jars, leaving 1 inch headspace. Adjust lids. Process in a pressure canner 20 minutes for pints, 25 minutes for quarts.
If using a weighted-gauge canner, set at 10 pounds pressure at 0-1,000 feet above sea level; set at 15 pounds pressure at higher altitudes.
If using a dial-gauge canner; set at:
- 11 pounds pressure at 0-2000 feet above sea level
- 12 pounds at 2,001-4,000 feet
- 13 pounds at 4,001-6,000 feet
- 14 pounds at 6.001-8,000 feet
- 15 pounds above 8,000 feet
Allow canner to cool and release pressure. Remove jars and set on towel on counter. Let rest until cool, or overnight.
Remove rings, wipe any spills. Date and label and store in a cool, dry location, out of direct sunlight. Best used within 1-2 years.
Yields around eight pints of home canned spaghetti sauce.
How long does home canned spaghetti sauce last?
The flavor and nutrient levels in your home canned spaghetti sauce are best when used within one to two years. If you store the sauce in the freezer, try to use it within six months.
We’ve used a few home canned items at five years of age, but the flavor is not as good.
Never use a canned product with a broken seal, bulging lid or other obvious signs of damage or spoilage.
How do you thicken homemade spaghetti sauce for canning?
Low, slow cooking is my default option to thicken the sauce and concentrate the flavor of the tomatoes. Other options include:
- Weigh and freeze the tomatoes, and then allow them to thaw in a colander to remove excess liquid before proceeding with the recipe.
- Can the sauce when it is somewhat thin, and then add tomato powder or dehydrated tomato puree to thicken when you heat the sauce for serving. I use this option when I make sauce out of cherry tomatoes or other very juicy tomatoes instead of paste tomatoes.
Some people grind up the skins and seeds to thicken the sauce. For our tastes, this made the sauce so bitter that we couldn’t eat it.
If You Don’t Have Enough Ripe Tomatoes from One Picking
If you don’t have enough ripe tomatoes at one time for canning spaghetti sauce, you can pop tomatoes that are very ripe or damaged into the freezer, until you have enough for the recipe.
I have found that ripe, undamaged tomatoes will easily keep for a week or more at room temperature. Cracked or otherwise damaged tomatoes will only last a day or two before spoiling and/or attracting fruit flies, so they should be processed in some manner within 24 hours, if possible.
I usually core the tomatoes and half or quarter them (depending on the size) before freezing. Then, when I am planning on canning spaghetti sauce the next day, I place them in the sink overnight to thaw. In the morning, you can pour off some of the clear juice if you like so that the cook down quicker. Weigh them out, dump them into your stockpot, and start cooking.
If you have fruit that’s refusing to ripen, check out “4 Reasons your Tomatoes Aren’t Ripening – And What You can Do About it“. If you have tomato blossoms, but no fruit, we have help for that, too.
Recommended Equipment for Canning Spaghetti Sauce:
Home Canned Spaghetti Sauce
Never buy spaghetti sauce from the store again.This homemade canning spaghetti sauce recipe is slow cooked and loaded with flavor. May also be used fresh or frozen if you don’t have a pressure canner.
- Prep Time: 5 hours
- Cook Time: 20 minutes
- Total Time: 5 hours 20 minutes
- Yield: 8 pints 1x
- Category: Sauce
- Method: Canning
- Cuisine: American-Italian
Ingredients
- 30 pounds tomatoes
- 1/4 cup butter or olive oil
- 1 cup chopped onions
- 5 minced garlic cloves
- 2 tablespoons salt
- 1 cup chopped celery or green pepper
- 1 pound sliced mushrooms (optional)
- 2 teaspoons black pepper
- 2 tablespoons dried oregano flakes
- 1/4 cup minced parsley
- 1/4 cup brown sugar or unrefined cane sugar
Instructions
- Wash 30 pounds of tomatoes. Remove cores and quarter tomatoes. Boil 20 minutes, uncovered, in large pan (or pans).
- Put through food strainer or food mill. Cook down tomatoes to reduce volume and make a thicker sauce. Reduce volume by 1/2 to 2/3rds.
- While the sauce is cooking, finish the remaining prep work, like chopping your veggies and getting the lids and jars ready. Prepare pressure canner according to manufacturer’s instructions.
To Finish the Sauce
- Saute in 1/4 cup butter or olive oil until tender: onions, garlic, celery or green pepper, and mushrooms.
- Combine sauteed vegetables and tomatoes.
- Add salt, black pepper, oregano, parsley and sugar.
- Bring to a boil. Stir frequently to avoid burning. Reduce heat to simmer, keep hot while waiting to process.
- Fill jars, leaving 1 inch headspace. Adjust lids.
- Process in a pressure canner 20 minutes for pints, 25 minutes for quarts. If using a weighted-gauge canner, set at 10 pounds pressure at 0-1,000 feet above sea level; set at 15 pounds pressure at higher altitudes. If using a dial-gauge canner; set at 11 pounds pressure at 0-2000 feet above sea level; 12 pounds at 2,001-4,000 feet; 13 pounds at 4,001-6,000 feet; 14 pounds at 6.001-8,000 feet; or 15 pounds above 8,000 feet.
- Allow canner to cool and release pressure. Remove jars and set on towel on counter. Let rest until cool, or overnight. Remove rings, wipe any spills. Date and label and store in a cool, dry location, out of direct sunlight. Best used within 1-2 years.
Nutrition
- Serving Size: 1 cup
Keywords: spaghetti sauce, marinara, tomato sauce, canning
You may also enjoy:
- Home Canned Salsa Recipe – Plus 10 Tips for Canning Salsa Safely
- 2 Homemade Ketchup – Canned or Lactofermented
- Home Canned Tomato Soup – Tastes Like a National Brand, Except Better
- How to Can Tomatoes in a Canner or Large Pot
- Pickled Cherry Tomatoes for Canning, Plus More Cherry Tomato Ideas
Originally published in 2009, last updated in 2019.
Candy Jane says
Good tutorials on both the spaget sauce and salsa! I've been making and freezing "raw" tomatoe soup and sauce – sure glad those 'maters made it before the frost nailed the garden!
Ute says
My question is if I could core the tomatoes and get the seeds out that way and than puree them in a food processor?
Laurie Neverman says
It’s a lot easier to cook them up and then run them through a food strainer, food mill or chinois than to hand remove the seeds, but if you really wanted to, you could blanch the tomatoes to remove the skins, core them and seed them and then cook them down and run them through a food processor. Alternatively, you could core them, seed them and skip blanching, and just grind up the peels, too. Some people even skip removing the seeds – but I find them quite bitter and unpleasant when pureed.
Lisa says
I bet your house smells heavenly! You really are my idol in all the canning goodness!
lisa
Laurie says
Most days it smells pretty good, I must admit. That's one of my favorite parts of cooking and one of my favorite things to come home to after a day in town. :^)
Michelle says
Laurie, I am loving your posts! Just the inspiration I am needing! Those tomatoes look fabulous and I can just smell the sauce. I am growing more tomatoes next year. *Ü*
Laurie says
Michelle, some of my favorite paste varieties are Amish Paste, Opalka and Purple Russian. For me, one or more of these three will produce large, meaty fruit and lots of them no matter what the weather conditions. My favorite seed sources are on the sidebar. It takes time to do this, but the technique is easy and the flavor is outstanding.
Carol says
I do not have the answer but I have my tom already throught food processor, so how much do I need for 30 lbs of tomatoes
Laurie Neverman says
I really don’t know. I always measure by starting tomato weight. Before I cook them down, there are around 21 quarts of quartered tomatoes, but I’ve never attempted to use a food processor, or measure them mid-processing.
Brigid says
I'm down to my last can. It's time while there are still some tomatoes left.
Glenn says
What, no Basil in your pasta sauce? 🙂
I keep looking back at this recipe, and after making a couple of batches of tomato sauce (not this recipe unfortunately as we just don't have that many tomatoes in our little garden) I wonder about the food ratios; you mention that "It is not safe to increase the proportion of onions, peppers, celery or mushrooms in this recipe if you are planning to can the sauce …" but you reduce the amount of tomatoes considerably during the entire process. Is this what you expect of the volume of tomatoes to vegetables?
Laurie says
Glenn, believe it or not, I'm not a huge fan of basil. I use it pretty sparingly in the kitchen. You could probably sub it in for the mushrooms or any of the other non-acidic ingredients.
As for the tomato ratio and safety issues, the quote was from the original recipe. What I believe she wanted to avoid was people overloading the sauce with other ingredients and losing the acidity of the tomatoes. You're only driving off excess water, not really changing the proportions, when you cook the tomatoes down, with or without the other veggies. Either should increase the acidity of the end product. If one was to add an extremely high proportion of non-acidic ingredients, you could potentially create a low-acid environment that would be much more prone to spoilage. I don't think tweaking a bit this way or that would be a problem, but some people go overboard. If it's really a concern one could use a pH test on the final product before canning and add some lemon juice or vinegar to lower the acidity if needed.
carol says
lower the ph,increase the acidity
Kaye Suzuki says
I thought you could base your canning times and pressure on the lowest acid ingredient in the recipe and maintain a safe product. More onions you would base the times and pressures on canning onions, etc
Laurie Neverman says
While basing processing times on the lowest acid ingredient may by effective, other factors may be at work, like thickness of product. Given the wide range of skill levels of people using recipes on the site, I try to keep things as simple as possible.
Cyndee says
Just took a class, add 2 tbsp of lemon juice to each jar, raises PH and you will never taste it
Laurie Neverman says
Personally, I most assuredly do taste it, and think it tastes terrible, which is why I’ve switched to non-GMO citric acid for plain tomato sauce. If you or anyone else decides to add lemon juice to this recipe, please do a pH test before attempting water bath canning.
Liz says
You can taste the lemon. I did diced tomatoes a few years ago this way. It was gross.
Cheryl says
Looks good. Just got done canning 15 pints spaghetti sauce today.
Laurie says
Good for you! 🙂
Christine Waterbury says
Can the tomato sauce be processed in a hor water bath canner?
CommonSenseIdea says
Water bath canning is not recommended for this sauce because the additional ingredients (other than tomatoes) raise the pH of the final product to a level where water bath canning is considered unsafe.
Laura Morrison says
Can you leave out the sugar? I never put sugar in my spaghetti sauce.
CommonSenseIdea says
I usually avoid adjusting canning recipes, but since this is pressure canned for a long period of time, I think it should be okay.
Jodi says
So glad I found this recipe! I plan to make some spaghetti sauce tomorrow (already have a “killer” recipe for salsa 🙂 Thank you!
CommonSenseIdea says
You’re welcome. Still waiting patiently for my tomatoes to ripen this season. The cool summer has everything behind.
April says
I made the spaghetti sauce today and it is delicious!!!!!
CommonSenseIdea says
Yay! I’m still waiting for my tomatoes to ripen this year. It’s been such a cool spring and summer.
Nancy says
Laurie, I just went over the entire recipe but I cannot find the recipe for the salsa, did I miss it? Can you share (email) it with me and the stewed tomatoes? Thank you
CommonSenseIdea says
The link to the salsa is in the text right about the photo of finished jars, but I’ll make it to see because if you can’t see it, other can’t, either. Here’s the link to the salsa recipe: https://commonsensehome.com/home-canned-salsa-that-tastes-a-lot-like-a-national-brand-except-better/
For the stewed tomatoes, I followed the Blue Book directions. Peel the tomatoes and put them in a large pot. Heat to quite warm ( no need to boil, you just don’t want to put cold food in hot jars). Add 1 tablespoon lemon juice to each pine, 2 tablespoons to each quart jar. This makes sure that the tomatoes are acidic enough to safely can, as many modern varieties are less acidic. Pack tomatoes into hot jars. Poke are press down with a wooden spoon or chopstick to make sure the air is out. Leave 1/2 inch headspace. Add 1/2 teaspoon salt per pint, 1 teaspoon salt per quart. (Optional). Put on lids and process pints and quarts 1 hour and 25 minutes in a boiling water bath or 25 minutes at 10 pounds pressure in a pressure canner.
gem says
hi there, question-
back in the day canning tomatoes was just tomatoes,.salt, sugar and we used basil. all fresh and in water bath. no vinegar, lemon juice or citric acid. a recent glance at ball book spaghetti sauce recipe online and a number of other on line recipes say to use either one of those w the recipe it gives. more research and we read todays genetically modified tomatoes need citric acid, vinegar or lemon juice for canning. whats ur experience on this?
thanks 🙂
CommonSenseIdea says
As far as I know, there are not currently any genetically modified tomatoes on the market – however – most modern hybrids are lower in acidity than traditional heirloom varieties. With the addition of herbs and/or other vegetables, this could place your tomato based sauce into the low acid range, making it a candidate for botulism or other food borne illness. Thus, the addition of lemon or vinegar to most current tomato sauce recipes.
gem says
http://foodpreservation.about.com/od/Canning/a/How-To-Can-Tomatoes.htm
I think this sorta explains what I was asking. todays tomatoes are different than yester-years.
btw, thanku kindly for ur website and facebook. u are a very remarkable woman 🙂
CommonSenseIdea says
Yes, that agrees with my understanding. Better safe than sorry, as we deal with nastier bugs than they did in the past.
Thank you for your words of encouragement. Some days it’s tough to find the energy to tackle it all. The kind words help keep me motivated.
Allison Spradlin says
Will a food strainer thing for the kitchen aid work as well?
Laurie Neverman says
Anything that will get the seeds out should do the trick.
Courtney says
Do you think you could use canned tomatoes if you don’t have enough from the garden? If so how much?
Laurie Neverman says
I measure all the tomatoes by weight, so I’d do the same with canned tomatoes.
Maria says
Hi, sounds wonderful! I can my tomatoes only. Any way you can break your reciepe down for a pint of tomatoes?
Thanks!
Laurie Neverman says
It’d be an awful lot of work to fire up the canner for a pint of anything, but you could divide all the measurements roughly be 12 if you just wanted to make it to eat right away.
Monique says
I admit I did not read all the previous comments – just a quick scan. I was just wondering if it would be safe to remove the sugar from the recipe?
Laurie Neverman says
Sugar ties up free water, which inhibits microbe growth. Given that the sauce is pressure canned, it should be okay, but I always hesitate to significantly modify an approved recipe.
bonnie says
Finally found THE recipe! It was well worth the time involved. I got 9 pints. I wish it wasn’t so late in the season so there would be enough tomatoes to make another batch!!!!! Planning for next year….
Laurie Neverman says
Nothing beats home canned.
William E. McCallister says
I’m just wondering why you use so many pots and don’t try using an electric roaster? It sure cuts down on the extra work.
Laurie Neverman says
I didn’t have a roaster.
Mickey Louth says
Since this is pressure canned, the ratio of veggies will not affect safe acidity levels; that is only an issue with water bath canning. I am hoping to have a good crop of tomatoes this year and will try this recipe. I’m still on the look out for a great tasting speghetti sauce recipe. thanks.
Laurie Neverman says
Changing the amount of vegetables with pressure canning can still be an issue, because it can change processing time.
Debra says
We add a lot more onions and and garlic to our 30 lbs of tomatoes and more spices too. We do add a tablespoon of lemon juice to each quart jar and have never had a problem with spoilage.
Mishell says
Hello thanks so much for the recipe. Planning on making this tonight but had a couple questions. I didn’t read anything about removing the skins. Should I leave them on? Also can I process themm in a magic bullet and just leave the seeds in my sauce? Thanks.
Laurie Neverman says
The seeds are removed with the food strainer (“Put through large food mill or sieve.” ) – fourth photo on page.
There are websites out there that will recommend pureeing seeds and skins in a high powered blender, but I’m not one of them. I tried it – once. The result was an incredibly bitter, basically inedible sauce. It was foul. Skins alone might not be quite as bad, but if you’re straining seeds you might as well strain skins, too.
Jana Strahan says
Hey Laurie, I love the recipe, but have a question: Is there a reason that you cook the tomatoes down for the 20 mins before straining out the skins and seeds? Why not just chop them and put them through the strainer before beginning the cooking process? Just wondering if there was a specific reason?
Laurie Neverman says
I cook them before straining to soften the flesh of the tomato so that you get maximum juice/pulp extraction.
Jana Strahan says
Thanks for your quick response. It’s a wonderful recipe that we will enjoy all year!
Laurie Neverman says
You’re welcome. I tried out a new tomato soup recipe last week that I’ll have live on the site this week.
Laurie meritt says
Can you can sauce that has Parmesan cheese (grated Kraft in a shaker canister) in it?
Laurie Neverman says
Canning cheese products is not recommended.
Rosepetal960 says
I did the same thing. I used the traditional canning recipe and added Parmesean (because I normally add Parmesean, I did it without even checking the recipe). Now, I’m wondering what to do with all of this sauce. I had already canned 6 quarts before it occurred to me. Can I freeze the sauce with Parmesean?
Laurie Neverman says
Yes, freezing should work just fine.
Cheryl says
If I added 2 T. bottled lemon juice to each jar could I process them in a water bath?
Laurie Neverman says
I wouldn’t recommend it, but if you did it and tested the pH and it was below 4.6, it should be safe. That much lemon would really make the taste less pleasant. The sauce can also be frozen if you don’t have a pressure canner.
Caryn says
My family brings the processed tomatoes to a boil and then places them in sterilized jars. The lids are simultaneously boiling in water and are pulled out one by one and placed on the jars, topped off with a ring. The heated lids form the seal then with the heat from the tomatoes. We only put the jars in water if the tomatoes were not very hot.
Laurie Neverman says
Lots of families process tomatoes the same way. My mom did that years ago. Unfortunately, with the more deadly microbes we have now, a better understanding of food science, and the higher pH of many modern tomato varieties, it is no longer recommended for safety reasons.
Pam says
Hi there Laurie,
I’m not sure if I’ve shared this with you before but I apologize if I have.
So, one year I had a HUGE crop of ‘maters and no time to prep and can them. So I rinsed them, and froze them whole. Then that winter I had to figure out what I was going to do with all these frozen tomatoes. I had wanted fire roasted tomatoes like the ones from Muir Glen. But grilling tomatoes is a thankless and wasteful job. Luckily, I discovered that if you take the frozen whole tomatoes out of the freezer and set them on the counter for 45 minutes, they are then barely soft enough to cut in half. Take the frozen halves and lay them face up on a cooling rack set over a sheet pan and put in a 350 degree oven for one hour. The only caution I would share is all the water will be in the sheet pan so use extreme caution pulling them out of the oven. (I cool the water and give to my plants or pour over my dogs food) So now I have roasted halves of tomatoes. I let them cool a bit and then gingerly pick them up by the underside and using clean hands of course, squeeze the meat out into a dish and what’s left is either the skin (on the bottom half of the tomato) or the skin and stem (on the top half). I then give the skins and stems to my chickens who are VERY happy to get this bounty.
What I have is a lovely roasted tomato puree that needs only a bit of salt and herbs to make marinara sauce. No need for paste or hours of cooking. You should try it sometime. It really is a great way to make marinara sauce. And I just water bath canned them. I would love to hear what you think about this method as I literally stumbled upon it trying to figure out how to deal with bags of frozen whole tomatoes one year. I have never seen anyone else do this so….
Anyway, Thanks again,
Pam
Laurie Neverman says
I don’t think you shared this before, or if you did, I can’t recall. I’d probably freeze, dry or freeze dry the resulting sauce, because tomatoes can be right on the edge of the current guidelines for safe water bath canning in terms of pH. The current recommendations called for added lemon or citric acid to canned tomato juice, tomatoes and sauces, which affects the flavor quite a bit (to me). if you did some pH testing and made sure it was below 4.6, then you’d know for sure you were out of botulism land.
It sounds tasty.
Ashley says
Do you have a brand or type of pressure canner you recommend? We did hot water bath canning last year but have 16 tomato plants and want to try doing sauce this year.
Laurie Neverman says
I have two Presto units, a Presto 01781 23-Quart Pressure Canner and Cooker that I use for larger jobs. I take the rack from my other unit, and can use it between pint jars to stack two layers high. I also picked up a Presto 01745 16-Quart pressure Canner and Cooker a few years ago, because the smaller vessel cycles a little faster with small batches. Both work well and get the job done.
My dream canner would be the All American 921 21-1/2-Quart Pressure Cooker/Canner, which has a metal on metal seal (no rubber gasket), and is made to last a lifetime – possibly several lifetimes.
Linda says
I have already finished my canning this year, but for future canning… if you leave out the mushrooms, is it safe to increase the other non-acidic ingredients (onion, celery, bell pepper)? It seems logical to me, but haven’t found any guidelines to confirm. And if so, would the safe amount of increase (onions, celery, bell peppers) be 1 lb. total? I don’t see any good reason to add the mushrooms to the sauce before canning, since the finished product will be used in a variety of ways, and I can always add mushrooms before serving, if desired.
Laurie Neverman says
Yes, as long as you stay within approximately the same volume/weight, the pressure canning process should allow some wiggle room.
Tracy Nelson says
How many cups of puree should I get? It seems that starting with lbs there could be some variation in the ratios,
Laurie Neverman says
I’ve never measured exactly, but I typically end up with 8-10 pints of finished sauce.
PJ says
Hi Laurie, I’m new to canning and I’d love to try this recipe. Can I use fresh oregano instead of dried? I have more oregano in my garden this year than I know what to do with. ????
Laurie Neverman says
With water bath canning, it’s not safe to substitute fresh herbs for dry, but since this is pressure canned it should be okay. I’d use double the amount of fresh oregano.
Janine says
Good morning,
I stumbled across your tomato sauce recipe and am making a batch now. I had a bushel of Roma tomato’s and the end weight is around 38 lbs. I eliminated the mushrooms and had several tablespoons over the 1 cup of both green peppers and onions not much though. I am wondering if you have heard of or have tried using canned tomato paste to thicken your sauce. Also I would like to add dried basil would that alter the recipe?
Laurie Neverman says
Dried basil should be fine, as should a small amount of tomato paste or powder. Just don’t get the consistency too thick, or that will impair heat transfer and could lead to unsafe canning conditions.
Janice says
How long does the spaghetti sauce stay good for?
Laurie Neverman says
At least 2-3 years. I’d try to use it up before then.
Carole says
HI, New at canning and diabetic, eat Low Carb HIgh Fat. Can I leave out the sugar or sub a natural sweetner like stevia?
Laurie Neverman says
As long as you pressure can the finished sauce, it should be okay to omit the sugar.
Teri B Faulkner says
Would love to try this recipe but wonder if you have any that I can use Water bath canned?
Laurie Neverman says
I don’t have one on the site. To safely water bath can tomatoes, you need to add lemon juice, which changes the flavor, or citric acid, which has less impact on flavor. You can safely water bath can plain tomato sauce by adding 1 tablespoon lemon juice per pint (2 tablespoons per quart). Process pints 35 minutes and quarts 40 minutes in a water bath canner.
Rose Hillier says
I have only canned using a water bath. Do I understand correctly that I can use your recipe just add 1 Tbsp lemon juice to pint prior to filling and processing? Any idea if canning jars can be used in Instant Pot? I understand that to be a pressure cooker. Thanks, Rose.
Laurie Neverman says
An Instant Pot is a pressure cooker, not a pressure canner, and is not safe to use for canning.
I do not recommend water bath canning this sauce, even with added lemon juice.
Rose Hillier says
Thank you!
Laurie Neverman says
You’re welcome.
Dorothea Ashbery says
I ant print it-sad
★★★★★
Laurie Neverman says
The print page should open in a new tab when you hit the print button. Otherwise you can always copy and paste the recipe into a word processing program.
Wanda says
Way too much salt
Laurie Neverman says
There’s only 2 tablespoons of salt for 30 pounds of tomatoes, so the concentration of salt is pretty low. It can be left out if you prefer, but you should know that salt is not the demon that it’s been made out to be in recent years. See “12 Reasons Why Salt is GOOD for you!” for more information.
Jenn says
My sauce is extremely runny despite cooking it down forever. Is it safe to add cornstarch to thicken prior to canning? I might add that some of my tomatoes were previously frozen and some were fresh. It measured about 30+ pounds. And if I omit the mushrooms do I have to add another cup of peppers, celery, or onions?
Laurie Neverman says
You don’t need to add addition peppers, celery or onions.
If all you have available for thickening is corn starch, it’s better to wait to thicken until after canning. Corn starch may clump during canning. A better alternative is UltraGel or ClearGel, which is specifically made not to clump during canning.
Jenn says
Thank you for the quick response!
Laurie Neverman says
You’re welcome. We need to tackle garden chores and cleaning this afternoon (our open house is coming up soon), but I know others are working on weekend projects, too.
Another option for thickening is plain tomato powder, which you can buy in bulk. I usually order Frontier organic tomato powder (amazon link). Sometimes I add very finely shredded dehydrated zucchini, too. It crumbles up and dissolves right into the sauce. More on that here – https://commonsensehome.com/extra-zucchini/
If I use all paste tomatoes, the sauce turns out thicker. With a mix of tomato types, or if the weather has been rainy, it’s tough to get it as thick as we prefer with just cooking it down.
TamraLou says
Hi there.
So I’m interested in trying your recipe but I would love to add olives without decreasing the other vegetables. I understand that this would offset the approved acidic level that you have. What would I need to do to bring it back into balance? More tomatoes? Longer processing time? And thoughts or suggestions?
Thank you.
Laurie Neverman says
Add them when you heat the sauce for serving? That would be the simplest. With pressure canning, there is some wiggle room in the pH (because it’s used with low acid foods), but I’m hesitant to make specific recommendations because your sauce might be thicker or thinner, or… You can probably add a cup or so, but I sure as heck don’t want to be responsible for someone mixing up something that get’s them sick.
The big thing to watch for is that you don’t get whatever your canning so thick that it can’t move freely in the jar. (Pumpkin butter, for instance, is not recommended for canning, but pumpkin chunks in water are fine because the water can circulate the heat.)
Kelly says
Hi could I cut everything in half to make a smaller batch? Thank you can’t wait to try!
Laurie Neverman says
Sure, that’s fine.
Amy says
Does the size of the chopped mushrooms or celery or onion make a difference? Could they be pulverized with an immersion blender to “hide” them from my kids but still have the taste?
Laurie Neverman says
It’s no problem at all for the veggies to be well blended. If anything, it’ll improve heat transfer within the jars.
Janine Davis says
That’s a good idea!!
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Lauren K says
How long do you cook the tomato sauce down for?
Laurie Neverman says
As long as it takes to get the sauce to your desired thickness. This will vary depending on the moisture content of your tomatoes, your stove, your cooking pots and how frequently you stir. As I mentioned in the post, I start out cooking multiple pots, but when the spaghetti sauce is ready to process, it all fits in an eight quart stock pot.
Barbee says
My tomato sauces are alw as ys so watery or thin. Is there anything I can do? What could I be doing wrong? How long do you cook your tomatoes?
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Laurie Neverman says
For a thicker sauce, it really helps to start with very meaty paste tomatoes. Without paste tomatoes, I end up cooking it down for most of the day.
Another “cheat” you can use to thicken your sauce is adding tomato paste or tomato powder, but I normally add that after canning, when I go to use the sauce, if needed. (Sometimes I end up making sauce with whatever tomatoes are left in the garden, or using up cherry tomatoes so they don’t go to waste.)
I like Frontier organic tomato powder, but there are other options available. Sometimes I make tomato puree and dehydrate it, and then add chunks of the dehydrated puree to thicken my sauce when getting ready to serve it.
Laurie Neverman says
Oh – dried, very finely shredded zucchini can also be used to thicken the sauce and sneak in more veggies (when you’re getting ready to serve, not before canning), but of course it doesn’t add more tomato flavor.
Shelia says
I don’t want to use all that sugar. Do I have to to properly can the sauce?
Laurie Neverman says
The sugar helps balance the flavor and it’s only 1/4 cup for 30 pounds of tomatoes, but if it is problematic, you don’t have to use it.
Shelia says
Do I need to add all the oil and sugar? Doing WW and don’t really need the extra points in my sauce. Also, can I add more spices or is that a no-no.
Laurie Neverman says
Dry spices are okay in small amounts. Skipping the oil is okay. The sugar does help to act as a preservative and balances the flavors, but it should be okay without it.
Libby says
I don’t have enough paste tomatoes this year for the recipe. Any suggestions on where I can purchase them or good substitutes?
Laurie Neverman says
You can use any tomatoes you have available. Paste tomatoes just require less cook time to make a thicker sauce.
Are their any farmers markets or local vegetable growers of any sort in your area? Around here, there are some who will take bulk orders for produce, especially if you are willing to take fruit with small cosmetic imperfections that don’t sell well at market, but work just fine in sauce.
If there are no local fresh tomatoes to be found, you can used gallon cans of whole tomatoes. Just check the weight on the can and plan accordingly.