Combine ginger and tea concentrate while still hot and refrigerate for at least three hours.
Strain and discard ginger.
Pour concentrate and ginger ale into ice filled glasses.
Makes 4 servings.
* For recipes that call for tea concentrates: steep 12 tea bags in 4 cups of boiling water. Before removing, squeeze the tea bags to get all of the liquid. Cool the concentrate in the refrigerator at least 3 hours and keep up to 2 weeks.