Acidity and tannins are present (to some degree) in all wines, and are two of the primary elements of a wine’s structure. Understandably, it can be tricky to sort out what’s behind the way a wine ...

Any pH value below 7 is considered acidic, and any pH value over 7 is considered alkaline (1, 2). On the pH scale, the difference between adjacent numbers represents a tenfold difference in acidity.