What is an effective technique that uses initial heat to speed up the sun tea process?

Answer

Starting with water brought near boiling and then cooled slightly before placing it in the sun.

Using water that has been heated initially starts the extraction rapidly. Allowing this hot liquid to cool slightly before setting it in the sun can drastically reduce the total time it spends in marginal temperatures.

What is an effective technique that uses initial heat to speed up the sun tea process?
suntimetea