1. Different sources: cognac can only be produced in the cognac producing areas in southwest France, while brandy can be produced in many producing areas in France.
2. Different brewing methods: Cognac is brewed from a certain type of grapes and then distilled in a unique way to make white Cognac. Brandy is made from various types of grapes and then distilled twice.
3. Different colors: cognac is light yellow and brandy is dark brown or golden yellow.
4. Different tastes: cognac tastes delicate, with fruity and barrel flavors, while brandy is more complicated, with fruity, floral and spicy flavors.
5. Different ways of use: Cognac is usually eaten as an aperitif or before dinner with rich cheese, while brandy is mainly used for cooking and making cocktails.