
Blood orange juice is the juice pressed from the blood orange, a pigmented variety group of the sweet orange whose flesh runs red to crimson.
A berry-like top note lifts the aroma; the body is sweet with a moderate citrus acidity and only faint bitterness.
Shaken into the build as a souring and colouring element, it lends both juice sweetness and a distinctive red hue; dose it as a bulk measure where colour is wanted, since the pigment is the trait no other orange supplies.
Ordinary orange juice matches its sweetness and acidity closely (top up with a little syrup or lemon if needed), but cannot reproduce the red colour or berry note — when those matter, only another red-pigmented source approximates it, at the cost of flavour or a changed ingredient list.
Ordinary (blond) sweet orange juice
Both are pressed from Citrus × sinensis and taste broadly similar, but blood orange juice carries anthocyanin pigment that gives it a red colour and a berry-like note, while ordinary orange juice is orange-coloured and lacks that note.
Squeezed from cultivars such as Moro, Tarocco and Sanguinello, it belongs to the same species as the ordinary sweet orange (Citrus × sinensis) rather than a separate citrus. Its red colour comes from anthocyanin pigments — rare in citrus and absent from blond oranges — which develop only when ripening happens under cold temperatures.
Fresh unpasteurised juice is perishable; refrigerate and use soon after pressing, as colour and aroma fade with standing and oxidation.
Blood oranges are strongly associated with cultivation in Sicily, where cold nights favour the red anthocyanin pigment; the Sicilian production holds protected geographical-indication recognition as Arancia Rossa di Sicilia.