Yes, you can change both the cumin and jalapenos – you don’t want to change the amount of tomatoes or acidity (or drastically change the peppers). I think others in the comment thread have said bottled lime juice works ok as a substitute. I can’t speak to the canning safety on that, but it’s probably fine. Glad the blanching skin method is working so well!
Sterilize the jars and lids in boiling water for at least 5 minutes. Pack the salsa into the hot, sterilized jars, filling the jars to within 1/4 inch of the top. Run a knife or a thin spatula around the insides of the jars after they have been filled to remove any air bubbles. Wipe the rims of the jars with a moist paper towel to remove any food residue. Top with lids, and screw on rings.
I have been making salsa like this for years with a couple tweaks I love garlic so I roast everything then chop it up nicely I also add a little garlic salt to brighten up the flavor and if at all possible use home grown veggies especially the tomatoes. People rave over this salsa thanks for this site I love Mexican food especially salsa with lots of peppers in it
I just made this wonderful salsa a couple of days ago with roma tomatoes. I 4X the recipe and ended up with 32 pints of salsa. We liked it so very much I am thinking of doing more with the 1 1/2 bushels of regular tomatoes that I have. Do you think that the regular tomatoes would have too much liquid in them or would the draining take care of that problem? I didn’t add the paste last time so I would probably add it for sure to make it thicker.