01 - Boil 2 quarts of filtered water in a kettle. Add tea bags or loose-leaf tea, and steep for 10 minutes. Remove tea bags or strain leaves to yield a clear infusion.
02 - Stir granulated sugar into hot tea until fully dissolved. Allow sweetened tea to cool completely to room temperature to prevent harm to fermentation culture.
03 - Transfer cooled sweet tea to a large, sterilized glass jar. Add the kombucha SCOBY and starter liquid or store-bought kombucha.
04 - Secure the jar with a clean cloth or paper towel and a rubber band. Set at room temperature, away from direct sunlight, and ferment undisturbed for 5–7 days.
05 - After five days, taste the beverage daily. It is ready for next steps when it’s mildly tangy and produces gentle fizz, without excessive sourness.
06 - Carefully remove the SCOBY and 3/4 cup kombucha to reserve for the following batch. Incorporate selected fruits, herbs, or spices according to preference.
07 - Transfer flavored kombucha into clean bottles, leaving 1 inch headspace. Seal tightly and ferment at room temperature for an additional 1–3 days for enhanced effervescence.
08 - Move bottles to the refrigerator once the desired level of carbonation has developed. Strain out solid flavorings prior to serving for a bright, refreshing mocktail.