Sweet Orange is the peel oil of Citrus × sinensis, the orange most of us eat and juice. As a perfume material it is the largest-volume citrus oil in the world, and it gives a warm, juicy, uncomplicated orange zest with very little bitterness.

What does Sweet Orange smell like?

Cold-pressed sweet orange oil smells like the burst of spray when you peel an orange: sweet, bright and cheerful, with a juicy, almost sugary warmth. It is more than 90% limonene, which is fairly weak in smell, so much of its character comes from minor aldehydes such as decanal and octanal, and from sesquiterpenes such as valencene and the sinensals. Valencia oranges give a fuller, juicier oil; early-season navel oranges a lighter one. Folded (concentrated) sweet orange oils, with much of the limonene removed, are richer and more intense.

Where Sweet Orange comes from

Most sweet orange oil comes from the juice industry in Brazil and the United States, where the peel is pressed after juicing. This makes it one of the most affordable natural materials available to perfumers.

• Also known as: Orange oil, Valencia orange, Citrus sinensis
• Fragrance family: Citrus
• Type: Natural
• Main origins: Brazil, United States (Florida, California), Mexico
• How it's obtained: Cold expression of the peel as a by-product of juicing; also folding
• Key aroma molecules: Limonene, decanal, octanal, valencene, sinensals

Sweet Orange in perfume history

Sweet orange oil has been used in perfumery since the early colognes, but its importance grew with the large-scale orange juice industry of the 20th century, which made it cheap and plentiful. Its main aroma constituents were identified as analytical chemistry developed, allowing perfumers to build synthetic orange accords.

Sweet Orange in modern perfumery

Sweet orange oil is used today in almost every category, especially in fruity, floral and gourmand fragrances. Its limonene is also valued as a natural solvent and as a feedstock for other aroma chemicals. Price and supply are tied to the orange juice market and to citrus greening disease, which has cut Florida's crop dramatically.

How Sweet Orange wears and what it pairs with

Sweet orange is a top note lasting 20 to 40 minutes. It pairs with vanilla, cinnamon, clove, chocolate, neroli, jasmine and amber.

Safety and regulation

Sweet orange oil is not generally considered phototoxic, but oxidised limonene can sensitise skin, and limonene is an EU-declarable allergen.