As fresh cranberries are hard and bitter, about 95% of cranberries are processed and used to make cranberry juice and sauce. They are also sold dried and sweetened.
Cranberry juice is usually sweetened or blended with other fruit juices to reduce its natural tartness. Many cocktails, including the Cosmopolitan, are made with cranberry juice. At one teaspoon of sugar per ounce, cranberry juice cocktail is more highly sweetened than even soda drinks that have been linked to obesity.