Concentrated tea for mixing

Bring water to a boil, take off heat and steep the bag 5 minutes. Remove the bag.

Return to heat and boil gently to reduce toward one-tenth of the starting volume, about 24 ml. Watch closely near the end so the small pan does not boil dry. Take off heat and carefully check volume after cooling enough to handle.

Cool and refrigerate if not using immediately. Divide as needed among four source small mixing portions; dilute for drinking.