“Kombucha is a fermented, slightly alcoholic, lightly effervescent, sweetened black or green tea drink commonly intended as a functional beverage for its supposed health benefits. Sometimes the beverage is called kombucha tea to distinguish it from the culture of bacteria and yeast.”
Sounds fancy, but tastes pretty good. And it’s easy to make. The kids like it too.
To make it at home you just need a SCOBY (and some starter tea).