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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 is a product of the fermentation of alcohol by bacteria to produce acetic acid. The acetic acid is what gives vinegar its tangy flavor and also the ingredient that makes vinegar useful for household cleaning.Although you can use any alcohol for fermentation, you want to use ethanol to make vinegar you can drink and use in recipes.The ethanol can come from any number of sources, such as apple cider, wine, rice wine, fermented sugar cane, beer, honey and water, whiskey and water, or vegetable juice.inegar is a product of the fermentation of alcohol by bacteria to produce acetic acid. The acetic acid is what gives vinegar its tangy flavor and also the ingredient that makes vinegar useful for household cleaning.