Add your tea and water to a pot.
Bring the mixture to a boil, stirring to make sure all the tea gets incorporated
Allow the water to boil pretty rapidly for 1-2 minutes, before turning the heat to med-low or low, to where the water is slowly and gently simmering.
Allow to simmer for 20-25 minutes, covered.
Remove from heat. If you have time, allow the tea to continue to soak in the water for 2-3 hours. When done, strain well and store in the fridge.