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
The Sour Notes praised by critics. The Sour Notes would later release two new tracks on 7-inch, recorded during those same studio sessions called "Finest Sour". On February 9, 2018 the band announced they had recorded a 10-track cover album entitled "This Is Not Our Music". The album features covers of songs by Galaxie 500, Radiohead, The Beatles, Sleater-Kinney, The Ronettes, Patti Smith, Wire, Jawbreaker, Beyoncé, Neil Young and was made available as a free download on SoundCloud. The Sour Notes The Sour Notes are an American independent rock band from Austin, Texas, formed in 2008 by multi-instrumentalist Jared Boulanger—who writes and composes