The primary ingredient used in making kombucha is tea, typically black or green tea. Kombucha is a fermented beverage created by brewing sweetened tea and allowing it to ferment with the help of a symbiotic culture of bacteria and yeast (SCOBY). The fermentation process produces a tangy and effervescent drink that is known for its potential health benefits, including probiotics and antioxidants. While additional flavors can be added through fruit or herbs, the base of kombucha always starts with tea, which is essential for the fermentation process, creating its unique taste and texture.