Bottle: Evenly distribute coffee, sugar, and optional flavors into fermentation bottles**. Pour in first fermentation kombucha, leaving 1 to 2 inches free at the top.
Ferment: Place in a dark, room temperature area for 3 to 10 days, until it reaches the carbonation level you like. This process will go faster in warmer climates, and slower in cooler climates.
Enjoy: Chill in the fridge before serving. Can be stored in the fridge, tightly sealed, for several weeks.
