Orange Oil Bitter is cold-pressed from the fragrant peels of Citrus aurantium fruits, which are mainly produced in Brazil. The botanical is endemic to Southeast Asia but rapidly spread to many regions throughout Europe, Africa, and the Americas during the early 20th century after becoming popularized as an ingredient within fragrance. Orange Oil Bitter is also a key component of many different orange liqueur and soft drink flavors, as it imparts a rich body and bittersweet twist to traditional sweet orange profiles. In perfume, Orange Oil Bitter pairs well with lavender, rosemary, and clary sage.