Why is it better to blend different grape varieties?
Well, each grape variety brings something different to the blend. For example: Cabernet Sauvignon lends tannin and structure; Merlot brings flesh; Cabernet Franc, aroma and so on. In a way it’s a little like music. A violin sounds good on its own, but even better as part of a quartet or orchestra where a much richer, more complex sound is possible.