Problem: Low Acid Foods – The trick to canning shelf-stable foods is the acidity. If you have the right amount of acidity, it creates an unpleasant environment for dangerous botulism bacteria to grow. When canning low acid foods such as green chiles, you need to either can them under pressure (using a pressure-canner), or if you use a simple water-bath canning process, add enough acidity to prevent bacteria from growing.
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Water bath canning involves submerging the jars in boiling water for a set period of processing time. It is suitable for high acid foods. Pressure canning (not pressure cooking) involves processing the jars in a sealed pressure canner at elevated temperature and pressure. You must can all low acid foods. You can can high acid foods, but most people just water bath can them. Some folks prefer dealing with the steam over dealing with a big pot of boiling water, which is why I give both options for this recipe. It is heavy on tomatoes and also has added vinegar, which should keep the pH below 4.6.
I am canning salsa my plan is to add baby carrots just prior to the water bath. My recipe (BEST EVER) calls for sweet baby carrots but I don’t wana cook them in the salsa I want them as fresh as possible. I hope it works, I’ve been canning for 30 years but have never attempted my salsa… I’ll keep you posted. I just maybe on to something. LOL Also, my home email is not the email I provided that is my biz email.
Salsa is the Spanish word for sauce (and the Italian word for sauce, too, for the bilinguals out there). In modern Mexico, the US and, well, large parts of the world, really, it is generally used a short form expression of salsa picante: a shockingly large group of (you guessed it) piquant sauces ranging in texture from runny over chunky to spreadable and in flavor from mild to brain-numbingly hot.
In theory, yes – BUT – there’s no way to test the finished product and confirm that it will heat evenly to ensure safe processing. You’re adding chunky,starchy bits that are likely to make the salsa thicker. Thick product slows down heat transfer. This may mean that the processing time needs to be increased to make sure that it heats all the way through, or it could push it to the point where it would not be recommended for home pressure canning, like pumpkin butter. (It’s safe to can pumpkin chunks, but it is not safe to can pumpkin butter.)
To make it really spicy hot, use about 15-20 Arbol peppers, 1 large beefsteak tomato or 2 roma tomatoes, 2 tomatillos (3 in case they are small). That way you will have a deep red salsa. But you can always use only tomatoes. The type of tomatoes I use depends of what it is available on the market. Year around I prefer the roma tomatoes and the big beefsteak type during the summer months when they are really flavorful and juice.
I am doing to try this for my first first canning/home salsa attempt ever. After reading your reviews in the comment section I think it should be a hint if I do it right on my end. That being said I have two questions. 1.) If I wanted a little more heat (LOVE all things spicy) do you have a recommendation? 2.) What is the ideal storage and what the self life? I don’t expect them to last that long, but still!!…. Thanks!!! Chuck in SC
As you will notice when we dive a little further into these recipes, Mexican food has a stunning range of somewhat special ingredients. From Masa Harina, the essential ingredient of corn over a wide array of chilies either fresh, dried or ground to Mexican oregano and tomatillos. Some of these may at first glance seem foreign and difficult to come by, but fear not we’ll discuss the individual ingredients as we go and they’ll be easier to come by than you think.
Homemade salsa is dangerous to consume after several weeks if it has not been properly canned. Most tomato salsas can be canned by being submerged in a boiling water bath for about 30 to 45 minutes. Cooks who wish to can salsa should carefully follow a tested recipe that is designed for canning. These recipes will call for a combination of vegetables that include enough acidity for safe preservation, and they usually will call for an added source of acid such as vinegar or lemon juice. It is important to look carefully at the listed products in the recipe, because some vinegars contain different levels of acidity, and it is essential to use one that is acidic enough to preserve the salsa.
The salsa will have a more desirable consistency if skins, seeds and cores are removed prior to processing. Skins can be easily removed by blanching the tomatoes. To blanch, place batches of tomatoes in boiling water for about 30 seconds. Immediately submerge the boiled tomatoes in a bowl of ice water. The skins will easily peel off, and the peeled tomatoes can be sliced, cored and seeded, chopped, then drained of excess water.
Before I was gifted so many tomatoes, I used to head to the farmer’s market this time of year and stock up on the uglies. The uglies are what most tomato farmers sell for dirt cheap- they are ugly, misshapen tomatoes that are perfect for salsa making. You’re going to need a lot of tomatoes, so skip the $3.99/lb heirlooms for this salsa. Grab a bucket of uglies and make salsa!
Author and culinary arts teacher James Peterson suggests chopping the firm ingredients very finely. Several ingredients that you need to chop finely include chiles, garlic, and onions. For softer ingredients, like tomatoes, you can prepare them coarsely. If you want a chunky textured salsa, use a food processor, but if you want it smooth, use a blender.
Made a half batch last weekend and loved it. My Roma’s finally started ripening this week so we just made a full batch. Instead of putting the tomatoes in the oven to peel the skins, I fired up or grill (Big Green Egg) with some extra hickory chunks and smoked/roasted all of the veggies first. Peeling was still a breeze and now our salsa has a delicious smoky kick to it. Otherwise followed the recipe exactly. Delicious!
Remove the skins from the tomatoes. To do this, make an “X” in the bottom of the tomatoes, than place in boiling water for 60 seconds. Then, remove the tomatoes from the water and place directly into a bowl if iced water to shock. The skins should slip right off. (I use my spider to transfer the tomatoes from the boiling water to the ice water without getting splashed.)
The exact weight of tomatoes will depend on the variety you use. I like to use roma (paste tomatoes) if I have them because the water content is less but any kind of tomato will work. The key is to peel the tomatoes and let them drain. See the step-by-step tutorial below the recipe for a visual. I like to pull out and discard the thicker white core of the tomatoes.
However, if you recently canned them, you’re okay to keep it – you don’t have to throw it away! Being improperly canned just means they can’t be stored at room temp for months and months. Just move the cans to a refrigerator for storage for a month or two. For longer storage, transfer the salsa to freezer-safe containers (leaving room to expand) and freeze. Salsa freezes well! If you have more ingredients, definitely try again using this recipe and the updates I now use in preparation if you have a food processor. 🙂
Why this meticulous approach to chili picking? Well, for the simple reason that it adds a stunning complexity to the salsa and provides the best possible product: a salsa roja that is at one time bright, fresh, fruity and acidic and at the same time rich, deep and complex in flavor with a noticeable, warming but not overpowering heat profile. This, in my own humble words, make it the PERFECT all-round salsa for every application including dipping, slathering, spreading, cooking or mixing.
The key to canning the freshest tomato salsa is doing so when the tomatoes are in peak season. Also be sure to find a canning recipe that is tried and true, because canning tomato salsa improperly can cause it to spoil. And peeling the tomatoes first is worth the effort. Canning tomato salsa is not the same as making it fresh to eat the same day. The skins will become tough and chewy once canned.
Hey Beth – sorry about that. The notes somehow went missing. I’ll add them again, but here’s a great article about canning salt. Basically, you can sub in kosher salt or even table salt (although use a bit less since the granules of table salt are finer)…it’s best to try to use a kosher salt without any additives (canning or pickling salt is pure salt without any anti-caking agents) if possible.
I am going to try this recipe today using roma tomatoes. I just wanted to add, most recipes call for de-seeding and squeezing out all tomato juice from the tomatoes. I have learned that you can cook down the juice and seeds, ( one year I had 2 quarts of tomato liquid …slowly cooked down to 1 half pint ) this way all my ingredients were fresh garden and not canned. The thickened tomato seed juice was so close to paste that it thickened the salsa I made. I just incorporated it into my tomatoes measurements. Trying that with your recipe. Ty
I followed the instructions to a T and it turned out horrible — bland, almost orange (not red) in color, and not spicy at all (2 serranos added). It’s also watery to the point of being a soup! I’m going to have to try to save at least a little bit of it and add it to some salsa verde that (thank goodness) I had in the fridge already. :/ I guess no short cuts will ever beat the real deal.
I have a beloved salsa recipe I have used for years. I canned a ton of it last year and thought I would try your recipe for some this year. I have a daughter who does not love cumin. Is the cumin flavor really strong in this salsa? I think the rest of my family would love it! Also do you have a good spaghetti sauce recipe for canning? Thanks for all you do! I have followed your blog almost from the beginning, my family always jokes when I give them a new recipe to try and say “is it from Mels?”
Preheat the broiler. Put the quartered tomatoes, sliced onion, and whole garlic cloves onto a roasting tray, spreading out evenly. Drizzle with plenty of olive oil and season well with salt and pepper and sprinkle with cilantro sprigs. Broil until everything is nicely charred, about 10 minutes (you want lots of deep rich color so don't be afraid if some of the edges get pretty black).
Hi Heather – from all the reading I did on that recipe, the lady who created the recipe, Annie, developed it and had it tested at her local extension office years ago. There are a lot of threads on the Garden web forum – I looked for a few minutes and couldn’t find the original thread I had read but here’s a couple that might help (there’s LOTS of discussion on there about the proper way to make the salsa without messing up the pH levels and making it unsafe):
Made my second batch today. First batch was a just over a week ago and yielded 8 jars. It was quickly apparent this was not enough!! lol Family is raving about this recipe. I didn’t add the sugar either time, don’t miss it. I used the jalepenos with all the seeds and membranes the first time. Quite spicy but not unbearable. This time around, I used the seeds and membranes from 3 of 5 of the jalepenos (per batch; I doubled the recipe this time, hoping to keep some in the house for more than a couple of weeks.) It’s perfect to my taste.. probably a medium to hot level compared to store bought. My family doesn’t like chunky salsa so I threw the tomatoes in the food processor for a couple of pulses, and used the food processor for the peppers, and onions. SUCH a great tasting recipe. All I hear are complaints that we keep running out of nacho chips 😉 Thanks for sharing!!
Kate, this is my first time to comment, but I have been making your recipes for over a year now and love them! I am also an RD, but living in Dublin, Ireland and not practicing. We don’t have quite the selection of canned tomatoes here, so I used a box of plain organic tomatoes and the tomato sauce in the box. It was still delicious! Good salsa is not easy to find here as well, so I will be making this often. Many thanks!
Thanks for such a great, informative website in regards to canning! We homeschool and I am teaching our kids a unit on canning. I’d done plenty of canning before but had always been scared/intimidated to modify recipes in the LEAST because I didn’t understand the science behind the process. Thanks to your website I’m starting to understand a lot more!!! This is especially helpful to be able to explain things to my science-minded “why” kid who wants to know EVERYTHING! I can’t wait to try more of these recipes!
This is a great salsa for beginners in Mexican cuisine. There are other salsas that are a little bit more complicated, and which require that you char the tomatoes and other veggies first. This salsa roja recipe, however, just requires that you blend the raw vegetables together, and then cook them with a bit of olive oil before adding onions and cilantro.
Combine all ingredients except cumin, oregano, and cilantro in a large pot and bring to a boil, stirring frequently, then reduce heat and simmer for 10 minutes. Add spices and simmer for another 20 minutes, stirring occasionally. Ladle hot salsa into pint jars, leaving 1/2-inch headspace. Adjust lids and process in a boiling-water canner for 15 minutes at 0–1,000 feet elevation, 20 minutes at 1,001–6,000 feet, and 25 minutes above 6,000 feet.