THREE: Combine Your Supplies
Your third step is going to start with brewing your sweet tea. You can add pre-made sweet tea like you would buy from the store or you can brew some caffeinated black or green tea yourself and then add sugar to it.
Once you have sweet tea, you can combine it with your Kombucha tea. Make sure that the sweet tea has cooled to room temperature if you brew it yourself. Use the towel to cover the jar so that the Kombucha can still breathe but is protected from contaminants and secure it with the rubber band.