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
What Goes Around... Comes Around colspan="3"| Streaming What Goes Around... Comes Around "What Goes Around.../...Comes Around (Interlude)" is a song recorded by American singer and songwriter Justin Timberlake for his second studio album, "FutureSex/LoveSounds" (2006). It was written and produced by Timberlake, Timbaland, and Danja. The song was said by Timberlake to be about betrayal and forgiveness, and was described by some music critics as a "sequel" to his 2002 single "Cry Me a River". The song received generally positive reviews from music critics. The song was retitled "What Goes Around... Comes Around" for its December 19, 2006, release as the third single from "FutureSex/LoveSounds".