Blue raspberry is a manufactured flavoring and food coloring for candy, snack foods, syrups, and soft drinks. The flavor and color do not derive from any species of raspberry, but rather the flavor was manufactured using "mostly esters of the banana, cherry, and pineapple variety". The flavor tends to be more tart than its red counterpart, with some comparing it to the flavors of pineapple or citrus. The blue color is achieved by using a bright blue synthetic food coloring, such as brilliant blue FCF (also called Blue #1) having European food coloring number E133. The blue color was used to differentiate raspberry-flavored foods from cherry-, watermelon-, and strawberry-flavored foods, each of which is red. There is no such thing in nature as a blue raspberry. The flavor mimics the flavor of blackcap raspberry Rubus leucodermis, a wild berry most of us have never seen or eaten.