Sterilize gallon glass jar - You can do this by washing with hot water & soap or running through a dishwasher.
Boil 4 cups of water - Make sure to use filtered water and bring it to a rolling boil.
Measure 2tbs of loose-leaf tea - You can place it in reusable tea bags, or a tea strainer, or just keep it loose Tea bags are also an option.
Brew tea for 10-15mins - Stirring occasionally
Remove tea & add sugar - Remove tea bags or use a strainer to remove tea leaves. Mix 1 cup of sugar until dissolved.
Leave to cool to room temperature - Then mix sweet tea with cold water halfway up.
Add SCOBY + 1 cup of starter tea - Make sure the mixture is at room temp. Use clean hands/utensils or minimize contact with the starter culture altogether.
Fill all the way up with filtered water - cover with cloth & secure with a rubber band
Leave to stand for 4-12 days in a dark place - Out of direct sunlight, tasting daily until you reach the desired flavor. Fermentation times vary, depending on the temperature.