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.
You need some fresh lime juice to add a citrus taste to your salsa. Not only does it add flavor, but its acidity can also help inhibit the growth of microorganisms in the salsa mix in case you decide to store them for longer days. Although using an already manufactured lime juice is convenient, it may not be advisable for this recipe because what we’re aiming here is natural freshness.
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. 
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