One day I was at a Korean friend's house, and she gave me a glass of cold tea. Its mild taste resembled that of whole grains. When I asked her about it, she opened her freezer and gave me a baggie of twigs. She told me to boil the twigs in a pot of water to make the tea. Koreans use it as a diuretic, she said. This baggie has been sitting in the back of my freezer for the past six months. Somehow I can not muster the courage to boil sticks in water. Maybe next time we go camping I'll give it a try. It seems like an outdoor activity.
Fortunately, E-mart sells a pre-made version: Speaking of tea, a new contractor stopped by my office. She gave me to packets of tea, which she had trouble describing in English. One is a green tea with brown rice (two of Korea's most popular ingredients) and the other is as yet unidentified: