Tua Sabu is a traditional alcoholic beverage from Sabu Island, located in East Nusa Tenggara, Indonesia. It is a type of palm wine made from the fermented sap of the lontar palm tree (Borassus flabellifer). The drink is deeply embedded in the culture of the Sabu-Raijua people, often consumed during social gatherings, traditional ceremonies, and religious rituals.
The production process begins by tapping the sap from the lontar palm tree, which is collected in bamboo containers. The fresh sap, known as "nira", has a naturally sweet taste and a low alcohol content. However, after fermentation, it becomes tua Sabu, developing a stronger, slightly sour, and mildly effervescent character.