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What is red wine vinegar?

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Quick Answer

Red wine vinegar is vinegar made from any type of red wine through fermentation of alcohol molecules into acetic acid. Red wine vinegar is consumed in a variety of ways, most commonly in salad dressings or marinades for meat and vegetables.

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What is red wine vinegar?
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Full Answer

Red wine will ferment into vinegar on its own if left exposed to oxygen for at least a month. This process can be sped up through the addition of acetic acid-producing bacteria to red wine. These bacteria convert the natural sugars in alcohol to acetic acid. Because the high calorie sugar is converted to acid, vinegar is essentially a calorie-free food.

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