Apple cider vinegar is a solution of acidic acid produced by fermentation of apples. It consists of acid, water, and only relatively small quantities of minerals. Although, it does contain a fair amount of pectin, which has recently been identified as lowering cholesterol and may be the secret behind it is fat burning effects. Apple cider vinegar is made by crushing apples and squeezing out the liquid. Sugar and yeast are added to the liquid to start the fermentation process, which turns the sugars into alcohol. In a second fermentation process, the alcohol is converted by acetic acid-forming bacteria into vinegar. Acetic acid gives vinegar its sour taste.