Jars of salsa, do I have to boil the jars if they sealed on their own? Wondering if I have to boil my homemade jars of salsa to seal them if they sealed on their own. (Yes I sterilized them before hand)
The salsa went in hot and once the lid was on, about 5 minutes later there was the telltale pop! 

IF this is safe, how long does something like homemade salsa and homemade sauces keep for in sealed jars?

Thanks!
~Andrea
Yes, you should fully process your salsa, even if you got the "hot jelly" seal just from hot packing.

The reason for this is that part of the processing is to ensure that the entire contents of the jar, all the way through, is at a high enough temperature for a long enough time to be safe as a shelf-stable product.   This may or may not already be true from the initial cooking down, but in these matters, you absolutely positively want to be sure.