Blue raspberry flavor
Blue raspberry is a manufactured flavoring and food coloring for candy, snack foods, syrups, and soft drinks. The flavor does not derive from any species of raspberry, but rather was developed using esters that are part of the flavor profile of pineapple, banana, and cherry. Sugar is commonly added to create taste appeal for the blue raspberry flavor.
Food products labeled as blue raspberry flavor are commonly dyed with a bright blue synthetic food coloring, such as brilliant blue FCF—also called FD&C Blue No. 1 or European food coloring number E133.
The blue color was used to differentiate raspberry-flavored foods from those for cherry, watermelon, and strawberry, each of which is typically red. The use of blue dye also partially is due to the U S. Food and Drug Administration's 1976 banning of amaranth-based Red Dye No. 2, which had previously been commonly used in raspberry-flavored products.