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.


I’ve never attempted to use canned tomatoes in the recipe, and can’t remember the last time I purchased store tomatoes, so I’m not sure how much liquid is in there in proportion to the fruit. My best guess to make this work would be to drain the tomatoes and then weigh them – but this would be a little high since the starting weight with raw tomatoes includes skins, seeds and excess juice that’s removed/drained off. Maybe around 16-80 pounds drained tomatoes? When I’ve drained my tomatoes after chopping, I end up with around 7 quarts in volume. There is no simple answer, unfortunately. If you give it a go, you may way to get pH strips to test the finished salsa and make sure the pH is below 4.6 for safe canning. If not, you could freeze, or add more vinegar.
I used the suggestion to use about half the cooking liquid maybe less. It turned out as expected for me. I used a variety of very ripe homegrown tomatoes and homegrown serrano chiles. Flavor was great. I used a Vitamix to completely blend everything so skins and seeds disappeared. The Vitamix lets steam escape so no issue in blending hot ingredients.
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?

Hi, I came across your recipe and am eager to try it, but have never done any canning before, so I dont have a canner. I’ve tried doing a little research, and am a little overwhelmed, so I thought I would ask the source. Is this recipe safe to can in a water bath method, just covering it with boiling water for the recommended time in a big pot? Forgive me if that is a stupid question! Thanks so much, I cant wait to try it!!
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