Lemon is more acidic than vinegar. If you replace the vinegar with lemon, it should be fine. If the pH is too high and you’re breeding botulism spores, there would be no obvious signs of the problem. If the pH is low enough to prevent botulism (4.6 or lower), spoilage would be likely be indicated by mold growth, bulging lids or other obvious signs of spoilage. If reprocessing is needed, it should be done within 24 hours.
Combine all ingredients in a large saucepan and stir frequently over high heat until mixture begins to boil, then reduce heat and simmer for 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.
Thank you, Jami! That explanation makes perfect sense. I’ve been researching canning a ton and the different acid types for different foods was the only thing that still had me stumped. Friends and family tease me about stressing out over botulism, but that is NOT a risk I am willing to take despite them telling me to “do it just like your grandma did, we loved her stuff” so I was very happy to come across your blog (way too many sites with recipes that are not approved). I had a huge crop of San Marzano tomatoes this year so I can’t wait to make your sauce and salsa (and my tried and true salsa for the fridge – but not to can ;).
I read some comments below and came back for a quick reply.. I noticed someone questioning the sugar in the recipe. Please dont omit it. You cant taste the sweetness at all. It is necessary for the salsa to retain its color in the jars for a longer period of time. My late Mother was a GREAT home-,maker and I will never be quite as good a ‘canner’ as she was, but she swore that if you leave out the sugar, that the salsa will darken quicker.
Katie, a 35 minute processing time is TOO long for salsa- the reason your canned tomatoes need that long is because you don’t add a cup of vinegar. Do a quick Google search to find that all the reputable salsa recipes call for 15 minute processing time (extension services, and the Ball Blue Book are two)- even for the recipes that have tomato paste added. I know you said it will make you feel better to go longer, but there are good reasons not to: energy costs and over-cooking the salsa are two good ones.
Roast the ingredients until they start showing some blistering and look slightly softened, turning them to make sure they roast evenly. The garlic cooks in a few minutes and you will need to remove it, peel the skin, and set aside. The roasting process will take about 8 minutes. If your tomatoes don’t look to softened, wrap them in aluminum foil for about 10 minutes, this will help them to finish cooking.
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!
Below in a comment from early August it said to get the 10 cups it would be about 8-12 tomatoes. I used about 30 medium size roma type tomatoes (filled 2 large sheet pans) and after peeling, chopping and draining I only end up with 6 cups of tomatoes. Did you meant o say 8-12lbs and not tomatoes or am I doing something wrong ? I ask because I change the ratio of ingredients off of that and do not want to mess the PH if somehow I am measuring wrong though not sure how I would be.
Some of the online recipes and comments totally scare me to think what some people are doing, either by direct choice or lack of canning knowledge, that endangers their families’ lives! There was a lot of unexplained illness and death in the old days that I think could be partly due to food storage issues. It’s the opposite of the Lottery–you want to be the 1 in a million to win the lottery, but you DON’T want to be the 1 in a million to win the botulism contaminated canning jar! Canning is one process that you MUST follow the safety rules whether you’re a natural rule follower or a rebel!
I cut this recipie in half and we don’t like green bell peppers but added radishes. Can I do that? Also, in cutting this recipie in half, I used 3 Serrano peppers and 1 jalapeño. I also forgot the tomato sauce as I just didn’t see it and I added 6 oz of tomato paste. I really cut everything in half but as far as changes I’m not sure if they are safe changes or not because I don’t know alot about canning salsa other than I really want to. Can you please help me out?
I made the salsa this last weekend with tomatoes from the garden about half slicers and half roma. I followed your easy method which works great for a working mom. But for some reason it turned out not very tomatoey, good spice, thickness, beautiful. I went ahead and canned it because I thought it might get better with time, and was scared to add tomato paste putting everything off balance. Were my tomatoes not ripe enough?