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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.
Sometimes dismissed as merely an ingredient for pickles or salad dressing, distilled vinegar has many uses. The clear liquid is a happy accident discovered to have amazing possibilities. From food to cleaning, plumbing to healing, vinegar is a handy item to have around the house.