The blue-black berries of this plant are smooth-skinned, round, juicy, and sweet. Look for firm, uniformly sized blueberries that are indigo blue with a silvery frost.
When cooked, blueberries turn a deep purple, offering up a sweet, slightly tangy flavor. They are used in pies, pastries, cakes, juices, drinks, liqueurs, salads, jams, jellies, and preserves. They are sold frozen, canned, fresh and dried.
Blueberries are high in anti-oxidants and considered very healthy. Maine and New Jersey are two states where blueberries are grown extensively, though off-season blueberries are imported from South America.