How does acetic acid (vinegar) help in preservation of food?
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Acetic acid has pungent smell which keeps away the microbes and food will remain fresh.
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A common preservative is acetic acid, which is used to stop bacterial growth in dressings, sauces, cheese and pickles. However, new research shows that a small amount of acetic acid does not have the intended effect, but rather the opposite -- it increases the amount of toxin from the harmful bacteria in the food.
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