
Orange blossom water is a clear, non-alcoholic aromatic water produced as a by-product of steam-distilling fresh bitter-orange blossoms.
A pronounced floral orange-blossom aroma dominates, with a delicate, honeyed sweetness of scent rather than sugar and a clean, watery body.
An aromatizer added in very small measure — a few drops or a light dash — to perfume a drink with orange-blossom scent. Aromatic strength varies widely between single- and multiple-distilled products and between diluted commercial and concentrated artisanal forms, so quantity is judged to taste rather than by fixed volume.
Only another orange-blossom-derived aromatic, such as heavily diluted neroli, approximates it; where the orange-blossom aroma is the drink's defining note, nothing else supplies it and it is effectively not substitutable.
Rose water
Rose water is the distillation hydrosol of rose petals, while orange blossom water is the hydrosol of bitter-orange blossoms. Both are clear floral distillate waters used the same way as aromatizers, but their aromatic sources are entirely different.
Neroli essential oil
Neroli is the concentrated essential oil co-produced from the same distillation; orange blossom water is the aqueous by-product carrying only trace, water-soluble aromatics, making it vastly weaker and water-based.
The aqueous fraction, or hydrosol, collected when the flowers of the bitter orange (Citrus aurantium) are steam-distilled to extract their essential oil, neroli. It carries no distilled spirit; its character comes entirely from the water-soluble volatile compounds of the blossom.
A traditional ingredient long used in North African and Middle Eastern cooking, where orange blossoms also serve as a perfume and freshener.