Cook the rhubarb:
In a saucepan, add chopped rhubarb and water. Simmer for 10–12 minutes until the rhubarb softens and releases its flavor.
Strain the liquid:
Strain the mixture to remove pulp, keeping the infused rhubarb liquid.
Brew the tea:
While the liquid is hot, add tea bags and steep for 3–4 minutes, then remove them.
Add mint infusion:
Add fresh mint leaves and allow them to steep for 5–7 minutes for a refreshing aroma.
Sweeten:
Stir in honey or sugar while the tea is warm until dissolved.
Add citrus balance:
Mix in lemon juice to enhance brightness and flavor.
Chill and serve:
Let the tea cool, pour over ice cubes, and garnish with mint leaves before serving.