What is the primary characteristic of Nebbiolo grape?

The primary characteristic of the Nebbiolo grape is its high acidity and tannin. This grape variety is well-known for producing structured wines that often have a pronounced acidity which helps in the aging process and contributes to the wine’s ability to develop complex flavors over time. The high tannin levels also provide a firm backbone to the wine, making Nebbiolo a favorite for aging, particularly when produced in regions like Barolo and Barbaresco.

In contrast to the other options, Nebbiolo typically does not exhibit low sugar content, as it is not particularly noted for sweetness or a sweet flavor profile. It also does not have a medium body; rather, it is often considered full-bodied, and while herbaceous notes can sometimes be found depending on specific winemaking styles and terroir, they are not the defining characteristic of the grape itself. Thus, the correct identification of high acidity and tannin as defining traits of Nebbiolo highlights its unique profile and suitability for producing complex, age-worthy wines.