Gather the ingredients.

Bring sugar and 1 cup water to a boil in a saucepan, and boil until sugar is completely dissolved. Remove from heat; add raspberries and tea bags. Crush raspberries slightly with the back of a spoon.

Let tea steep for about 5 minutes, or until tea reaches the strength you desire. Remove tea bags.

Pour mixture through a sieve to strain out raspberries into a 1-gallon pitcher. Fill the pitcher with remaining cold water; chill thoroughly before serving, about 1 hour.