For cold hibiscus tea: Place the hibiscus flowers in a single-cup tea infuser. Insert the infuser into a mug. Add cold filtered or tap water, filling the mug to the top. Let it sit for at least 20 minutes until the liquid turns bright red. For a deeper color and richer flavor, chill the tea overnight.
For warm tea: Heat water to around 170ºF. Pour the hot water over 1 tablespoon of hibiscus flowers. Let it steep for 3 to 5 minutes. Strain the tea before serving.
