Which grape is the primary varietal in Bordeaux wines?

The primary varietal in Bordeaux wines is Cabernet Sauvignon. This grape is renowned for its bold flavor profile, including notes of dark fruits, such as blackcurrants and plums, along with herbal and earthy undertones. It thrives in the Bordeaux region’s climate and soil conditions, contributing significantly to the structure and aging potential of the wines produced there.

Cabernet Sauvignon is often blended with other varietals like Merlot and Cabernet Franc in Bordeaux blends, which enhances the wine's complexity and balance. While many Bordeaux wines may prominently feature Merlot, particularly in the Right Bank regions, Cabernet Sauvignon is considered the hallmark grape for the classic Bordeaux style, especially in Left Bank wines. This distinction in profile and prominence is what solidifies Cabernet Sauvignon as the primary grape of Bordeaux.