An essential component in wine. The oxidation of alcohol can cause acetic acid, sometimes referred to as volatile acidity.
Acidity can balance sweetness, and is necessary for wines to age well.
Ageing All wine is aged, from a few weeks to many decades. After a certain point all wine will decline in the bottle. The difference between oak and stainless steel barrels is evident. Assemblage It is the blending of several wines from different grape-varieties, independently vinified. Aperitif Any wine served before a meal.