What is the key distinction between Cognac and brandy?

The key distinction between Cognac and brandy lies in the production regulations surrounding Cognac, which is a specific type of brandy. Cognac must be produced in the Cognac region of France and adhere to strict guidelines, including the requirement of double distillation. This process contributes to its unique flavor profile and character, distinguishing it from other brandies made in different regions or under different regulations.

The other options do not accurately capture the essential differences. For instance, while one might think of sweetness in relation to flavor profiles, it is not a defining trait of Cognac compared to brandy as a whole. Aging also varies among both types of spirits, with many brandies being aged for significant periods, and it is not necessarily true that brandy is aged longer than Cognac. Additionally, color can be subjective and varies widely within each category, so it cannot be a distinguishing factor. The stringent criteria for production and origin truly set Cognac apart within the broader category of brandy.