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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.
get healthy living updates. Vinegar is a mainstay of the old folk recipes for cleaning, and with good reason. The vim of the vinegar is that it kills bacteria, mold and germs. Heinz company spokesperson Michael Mullen references numerous studies to show that a straight 5 percent solution of vinegar the kind you can buy in the supermarket kills 99 percent of bacteria, 82 percent of mold, and 80 percent of germs (viruses).