What is a defining characteristic of Cahor wine?

Cahors wine is primarily known for its high tannin content, which is a defining characteristic of this region's red wines. This quality is primarily attributed to the Malbec grape, which is the main varietal used in Cahors wine production. The high tannin levels contribute to the structure and aging potential of the wine, allowing it to develop complex flavors over time.

Tannins come from the grape skins, seeds, and stems, and they play a crucial role in the texture and mouthfeel of the wine. Cahors wines are often full-bodied and robust, making them excellent candidates for aging, as the tannins soften and integrate with other flavor components over time.

While the other options may describe characteristics of different wines, they do not accurately depict the specific and defining trait of Cahors wine, which is its notable high tannin content. Low acidity, sweet flavor profiles, and low alcohol content are not typical of Cahors wines and do not reflect their traditional style or characteristics.