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Vinegar is used to preserve a wide variety of vegetables and fruits, along with meats, fish and eggs. Preserving food with vinegar is called pickling. A short list of foods â¦ that are commonly pickled would include pigs' feet, herring, beets, cucumbers, onions, olives, peppers, peaches, pears, and watermelon rind.o preserve food the pioneers used salt, and vinegar and they could have sun dried the food and they might have had root cellars to keep the preserved food edible and cool.
Vinegar contains essential nutrients that are important for healthy digestion, food metabolism and energy production. All vinegars, particularly organic types such as apple cider vinegar, which are less filtered and processed, are beneficial for heart, blood vessel, nerve and muscle health. These include vitamins A, B-complex, C and E and minerals such as calcium, magnesium, potassium, phosphorus and sodium.