If you live in a town with a noticeable Mexican or Latin American community, chances are you’ll be able to find a specialty store carrying these goods, if not there’s always the good, old, world wide web. Many websites carry and even specialize in Mexican and Latin American ingredients. If you live in Denmark like me, try out chilihouse.dk for example, they’re a great one stop resource and they’re not even paying me to say that!
Homemade salsa is dangerous to consume after several weeks if it has not been properly canned. Most tomato salsas can be canned by being submerged in a boiling water bath for about 30 to 45 minutes. Cooks who wish to can salsa should carefully follow a tested recipe that is designed for canning. These recipes will call for a combination of vegetables that include enough acidity for safe preservation, and they usually will call for an added source of acid such as vinegar or lemon juice. It is important to look carefully at the listed products in the recipe, because some vinegars contain different levels of acidity, and it is essential to use one that is acidic enough to preserve the salsa.
No patience for such shenanigans? During my latest visit, my culinary playpal Malou from klidmoster.dk brought up the delicate subject of freezing salsa. Would salsa freeze well, she asked. Not really sure what to tell her, I ventured an “uh, maybe, try?” to her question and sort of left it at that. My subsequent research has shown, though, that freezing is a viable and easy alternative to canning but it does seem to lead to a slight loss in appearance and quality. Most noticeably, freezing and thawing of salsa will cause a watery liquid to separate from the solids. If this poses a problem for your desired application, simply drain off any liquid before using or serving.