I had a cup of this at my local coffee shop. They got their loose leaf tea from a local tea shop. It was a nice cup, not too pepperminty, which is something I often find with peppermint tea. :)
The best peppermint comes from the northwestern United States. The pure, moist mountain air of the spring and early summer growing season gives this peppermint some of the highest volatile oil counts of any member of the mint family. Generally (dependent upon weather patterns) the second cut (takes place during mid/end August) is the most flavorful, coolest and most pungent, (literally takes your breath away and makes your eyes water). Peppermint is an herb and contains no caffeine.