It's certainly possible as Herdes sells canned salsa. However, if anything demands freshness, to me, it's salsa so canning seems self-defeating. I agree with you that freshly made salsa is best, but ...

Freshly cut-up tomatoes, onions and peppers make delicious salsas to serve over meat and seafood or to eat with tortilla chips. Many people have developed their own “special” salsa recipe using a ...