How can I make fermented tea at home?

To make fermented tea at home, start by brewing a strong batch of black or green tea. Add sugar and a SCOBY (symbiotic culture of bacteria and yeast) to the tea, then cover the container with a cloth and let it ferment for 7-14 days. Strain out the SCOBY and store the fermented tea in airtight bottles in the refrigerator.