Kombucha is fermented tea that has a tangy, cider flavor and is naturally effervescent. Traditionally a black tea & cane sugar ferment, kombucha can also refer to any number of probiotic beverages fermented using the kombucha culture which is known as a SCOBY.
SCOBY stands for Symbiotic Culture of Bacteria and Yeast. It is an acetobacter dominant culture with a variety of yeasts that also colonize the culture which may include saccharomyces cerevisiae, saccharomyces pombe, and/or Brettanomyces Bruxellensis to name a few. After the initial fermentation, other flavorings may be added to enhance the flavor or health benefit of the fermented tea.