Most recipes for canning salsa call for vinegar, which I do not like at all. It makes the salsa taste more like a pickle and less like a fresh salsa. I developed this recipe to conform to the requirements of safe canning practices while still tasting as much like fresh salsa as possible. Salting and straining the tomatoes prevents the salsa from being too "soupy" without requiring a long cooking time to reduce the liquid. You should buy 10 limes; you probably won't need them all but they do vary in juiciness quite a bit. NOTE: Jalapenos vary wildly in strength - the ones I get are fairly mild. If yours are very hot, or if you are looking for a milder salsa, you should feel free to reduce them accordingly.