Oranges are one of the most popular fruits in the U.S., but few people consume the peel, which is the healthiest part of the fruit. Orange peel has an intense, citrusy, bitter flavor. It is often minced and dried, which captures all of the essential oils. Orange zest is made from the outer orange peel and not the pith (the white part of the rind).
Orange peel is frequently used in Chinese stir fries to add a zesty tang to meats and vegetables. Candied orange peel is a popular treat and orange peels have been popular among breweries that make "summer ales." Orange peel has also been a traditional additive to teas and homemade potpourri.
Bitterness is often a clue that a food is healthy, as it’s a result of the many flavonoids contained in a substance like orange peel. Additionally, orange peel contains higher amounts of certain nutrients than its flesh, including vitamin C.