A fermented tea, kombucha is a lively, fizzy probiotic beverage that is at once faintly tart with hints of apple cider. In this version, classic kombucha tea undergoes a second fermentation that infuses it with the flavors of cinnamon, cloves, ginger and sweet spices.
Drop the cloves and cinnamon stick into a 16-ounce flip-top bottle.
In a pitcher, stir the grated ginger and apple juice into the kombucha tea. Pour the liquid ingredients into the flip-top bottle, leaving at least ½ inch of headspace. Close the bottle, and transfer it to a warm spot in your kitchen. Allow the kombucha to ferment for 5 days, then transfer to the refrigerator.
Open the bottle carefully over the sink as it may foam, and strain the kombucha through a fine mesh sieve. Serve the kombucha over ice.