With the summer gardens finally coming into season bringing an abundance of tomatoes, peppers/chilies, onions, and herbs, salsa making season is here! With it comes lots of questions to AnswerLine regarding how to make it safely. This blog will attempt to answer some of the most frequently asked questions.
I made up my own recipe for salsa or got one from a friend. Can you tell me how long to process it? It is important to use a tested or researched based recipe when canning homemade salsa. The reason being, the ratio of low acid vegetables (tomatoes, peppers, onion and garlic) to acid (lemon juice, lime juice, or vinegar) has not been tested in a non-research based recipe. Recipes that have been tested will have enough acid to prevent the growth of the botulism bacteria and provide a safe product that everyone can enjoy straight from the canning jar. (Source: Homemade Salsa is a Science, Not an Art, Michigan State University)
Where do I find safe recipes for canning salsa? Creating a safe product that can be processed and stored on a shelf means having the correct proportion of acid to low acid vegetables to prevent the growth of botulism bacteria. The best way to ensure that the salsa is safe is to always follow a tested or researched based recipe. These recipes can be found at the National Center for Home Food Preservation, Land Grand University publications or blogs, The USDA’s Complete Guide to Home Canning, and So Easy to Preserve.
Can I make my own salsa recipe? Creating your own recipe is a possibility. However, instead of guessing at the processing time, freeze it or make just enough to be eaten fresh. Another alternative is to follow a tested recipe using the exact ingredients and processing time; when ready to use, add the black beans, corn, or any other ingredient that should not be used in a home canned salsa recipe.
Can I add more cilantro to my canned salsa than the recipe includes? Cilantro is best added to fresh salsa. It is not usually included in cooked recipes. Cilantro loses its fresh flavor when cooked and becomes dark and soft in the mixture. As mentioned in creating your own salsa, cilantro could be added at the time of using the canned salsa.
Do I have to use canning salt? Canning salt is recommended and should definitely be used with vegetable and pickle canning. However, in a pinch, one could get by with iodized or table salt with salsa. The product will be safe but one may detect a metallic or bitter flavor which may not be disguised by the spices or herbs used in the salsa. Also, table salt usually has an added anti-caking ingredient which may cause a slight cloudiness.
Can I substitute peppers? One should never increase the total volume of peppers in a recipe. However, substituting one variety of a pepper for another is perfectly fine.
Must I use the suggested spices? Spices are the only safe ingredient you may change in a tested recipe to adjust for flavor.
Does it matter what kind of onion I use? Like peppers, one should not increase the amount of onion specified in a tested recipe. However, red, yellow, or white onions may be substituted for each other.
Is it okay to use any size jar? The size of the jar can also affect the safety of the product. All tested recipes are canned in pint jars and one should not substitute another size and assume it is safe.
For more information on preserving homemade salsa, check out Preserve the Taste of Summer Canning: Salsa.