Water a hair short of a boil, add tea and let cool to about 160. Remove tea leaves and put into refrigerator. After chilled pour over ice and drink. Add some sugar if you are disposed. If you are, you should just be disposed of.
I prefer about a 60/40 mix of Oolong and Orange Pekoe. Although Orange Pekoe and Black is also good.
My wife just heats water, puts the Lousiane bags in it to soak a while then puts in a jug in the fridge. I drink it. About all tastes the same anyway.
Nemo