Kombucha is a fermented, somewhat alcoholic, lightly effervescent, sweetened black or green tea beverage with alleged health benefits.

From a profile of Health-Ade’s founder and CEO Daina Trout in Delta Airlines’Sky magazine of May 2018:

The effervescent elixir is made from three ingredients—tea, water and sugar—plus a scoby, a starter culture. Trout uses a blend of black and green teas from Asia and Africa.

Making kombucha starts with steeping the tea. The next step is adding the scoby, which floats on top of the cooled tea, eating up sugars and transforming them into healthy acids as the tea ferments. To create different flavors—think California grape or ginger lemon—Trout mixes in organic cold-pressed juices.