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
French language in the United States French language in the United States The French language is spoken as a minority language in the United States. Roughly 2.07 million Americans over the age of five reported speaking the language at home in a federal 2010 estimate, making French the fourth most-spoken language in the nation behind English, Spanish, and Chinese (when Cajun, Haitian Creole and all other forms of French are included, and when Cantonese, Mandarin and other varieties of Chinese are similarly combined). Several varieties of French evolved in what is now the United States: More recently, French has also been carried to various parts of