Acids in wine responsible for the sour taste of vinegar. During fermentation, activity by yeast cells naturally produces a small amount of acetic acid. If the wine is exposed to oxygen, "Acetobacter" bacteria will convert the ethanol into acetic acid. This process is known as the “acetification” of wine and is the primary process behind wine degradation into vinegar. An excessive amount of acetic acid is also considered a wine fault. A taster's sensitivity to acetic acid will vary, but most people can detect excessive amounts at around 600 mg/l. Ascorbic acid, also known as vitamin C, is found in young wine grapes
Sour Punch Sour Punch Sour Punch is a brand of sour candy, manufactured by American Licorice Company. As one of the first brands to enter the sour candy market in the 1990s, it comes in 5 forms: Straws, Bites, Bits, Ropes, and Twists. Sour Punch comes in 5 different flavors. Like many other sour candies, they are coated with sour sugar to supply the familiar sour flavor. One serving size of Sour Punch twists contains 150 calories. It is often a popular candy for those who are lactose intolerant, as it contains none. 1. <https://web.archive.org/web/20100323090733/http://www.americanlicorice.com/ourCandy/sourPunch.aspx> Retrieved February 1, 2010 2. <http://www.americanlicorice.com/aboutUs/companyHistory.aspx>Retrieved February