Bring the water to a boil in the stock pot.
Remove from heat and slowly add in sugar and stir gently until it dissolves.
Slowly drop in the tea bags and allow to steep until the water has cooled. This will most likely take a few hours.
Once tea is cool (or strain the loose leaf tea) and add in the 2 cups of starter tea and stir gently to combine.
Pour the mixture into a clean 1 gallon glass far or 2 - 2 quart glass jars.
With clean hands, gently add the scoby to the jar (or jars).
Cover the mouth of the jar(s) with a clean cloth, a few layers of paper towels, or a few coffee filters. Secure tightly with a rubberband.
Ferment the tea mixture for 7-12 days. Keep the jar with the mixture out of direct sunlight and don't disturb the contents.
Once the tea reaches your desired taste (you can begin tasting the kombucha around day 7), remove the scoby from the jar with clean hands and set aside.
Measure out two cups of starter tea for your next batch and set aside.
You may strain the Kombucha at this step if you'd like. Pour the Kombucha into your swingtop bottle, glass bottles, or plastic soda/water bottles leaving 1/2" - 1" of headspace.
Store the bottles at room temperature out of direct sun and allow the kombucha to carbonate. When the plastic bottles are rock hard, you may put the bottles in the refrigerator to stop the carbonation process.
Make a fresh batch of Kombucha using your starter tea and scoby.