There have been some really exciting developments in tea over the past couple decades. However, they've mostly been with technology or flavors. Adagio's new "Roots Campaign" plays closer to my heart. This third installment is wonderful!
Lots of companies offer black teas. They're the most traditional and recognized kind of tea. More recently companies have been offering black teas from different countries. This Sri Lankan blend from Adagio is a nice relaxing brew.