What type of orange is Cointreau made with?

Cointreau is made with sweet and bitter orange peels, primarily using a blend of orange varieties. However, the key variety associated with Cointreau is the Valencia orange. This variety is known for its sweetness and is often used in the production of liqueurs and juices. Valencia oranges have a high juice content, making them ideal for extracting the flavorful essence needed for crafting Cointreau. While other types of oranges may have distinct characteristics, the specific choice of Valencia in the production process contributes to the unique flavor profile that defines Cointreau.