[header] How to make hot tea concentrate [title] Boil one quart of water to 100 degrees celsius. [step] Measure out 2/3 cup of loose tea into a canning jar. Good quality, organic tea is the best. 
Some yummy suggestions would be, assam, oolong, or lapsang souchong. Most people think that lapsang is too smokey but once you acquire a taste for it you will love it.