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
Our Word Is Our Weapon essential communiques of the new Mexican Revolution. Possibly the most influential collection of writings upon my musical and political perspective." — Zack de la Rocha of Rage Against the Machine. ""Our Word is Our Weapon" crystallizes the passion of a rebel, the poetry of a movement, and the literary genius of indigenous Mexico. The flame that burns here is a light for literature and democracy, a dangerous fire for those in power." — Martín Espada. Our Word Is Our Weapon Our Word is Our Weapon () is a collection of writings by Subcomandante Marcos of the Zapatista Army of National