Put tea bag and hot water into a teapot. Simmer water on the stovetop or use an electric kettle. Set the water temperature to 190°F when using the electric kettle.
Cover and steep for 4 minutes.
Put ice and hot tea into a cocktail shaker. Shake 10 times.Put ice in first, then the hot tea.
Pour iced tea into a cup.
I first tried making this drink with the Tazo Iced Passion tea concentrate it's nowhere as good as making iced tea from the tea bag. The concentrate was a dull browish-red color instead of vibrant red, tasted watered down, and cloyingly sweetened.
There's no need to use boiling hot water to make the hot tea for iced tea. Simmered water works just as well and it'll cool down quicker.
Tea bags contain small, crushed pieces of herbals so you don't need to steep it for as long as you would whole herbals.
Starbucks doesn't sweeten their Iced Passion Tango Tea, but if you want to add a little sweetener, use a simple syrup. It'll mix in easily into an iced drink.
The more vigorously you shake the iced tea, the more foam you'll see on the surface. If you like a lot of foam, keep shaking it, about 40 times.
Starbucks uses Teavana's Passion Tango tea concentrate to make their iced tea, but that isn't sold anywhere and neither is Passion Tango in tea bags. Instead, I'm using a very close version that's made by Tazo.
Use filtered water if possible for a better tasting tea. Use filtered water to make the ice too.