This weekend I bought a recipe for a watermelon beer. It uses all watermelon extract for flavoring. I was considering trying to flavor it with some real watermelon. But I have no idea how much watermelon to use. I was thinking of adding it to a secondary fermenter. One of my concerns is I may need a lot of watermelon to get any flavor. Will adding too much end up diluting the whole recipe? Is it even worth adding real fruit?