Canning Salsa Ingredients Acids Help Preserve Canning Salsas The acidic ingredients help preserve canned salsas. Acids have been used in salsa canning in boiling water to make them safe enough to do so. The acids are usually commercially bottled vinegar or lemon juice. Buy a vinegar of at least 5 percent acidity; do not use … Continue reading Acids Help Preserve Canning Salsas →