Tea Blends Unique & Uncommon Kosher Peppermint Herbal A traditional herbal with a marvelous, brisk flavor. Character: Strong mint flavor. Production: Herbal peppermint leaves are cut and stiffed. Effects: Rejuvenating Brewing Time: Boiling water, 5 minutes. Caffeine Content: 0 milligrams A family collaboration gave rise to HT: Unique & Uncommon Tea blending. HT is grounded in the Harney tradition or providing the finest quality full-leaf teas and herbs, all packed in a stunning silken tea sachet. You can now enjoy the sophistication of full-leaf teas with teabag convenience.