Sun green tea 21. July 2011 William Davis (11) Here's a great way to enjoy the health benefits of green tea during the summer: sun green tea. I dropped two green tea bags into approximately one-half gallon of cold water in a clear glass jar. I placed the jar in the sun (with top on) for four hours, then brought it into the kitchen. I served it as iced tea with a slice of lemon and mint leaf. The sun green tea was a smoother than standard green tea brewed with hot water. Ordinarily, if you brew hot green tea for more than 3-5 minutes, it becomes more bitter or tannic. This sun green tea, despite steeping for four hours, was not the least bit bitter or tannic. The green tea lasted well for about 48 hours, more than enough to enjoy several glasses per day.