What type of varietals is San Antonio Valley known for producing due to its warm climate?

San Antonio Valley's warm climate is ideal for producing warm varietals, which thrive in warmer temperatures. The heat in this region allows for grapes to reach optimal ripeness, contributing to fuller-bodied wines with rich flavors and higher alcohol content. Varietals commonly associated with warm climates include Cabernet Sauvignon, Merlot, Zinfandel, and various Rhône varieties, which benefit from the long growing season provided by the warmth.

On the other hand, cool climate varietals tend to prefer cooler conditions to preserve acidity and finesse, which is not characteristic of the San Antonio Valley. Aromatic white varietals typically thrive in cooler climates where their delicate aromas can be retained, contrasting with the robust profile typically found in warm varietals. High acidity varietals are more closely associated with cooler growing regions, where the grapes maintain their acidity levels due to less intense sun exposure. Thus, the warm climate of San Antonio Valley specifically supports the robust and ripe characteristics of warm varietals, making it a prime location for those specific grape types.