I have bought some of Adagio's teaware, and I would love to try some of the tea (the selection looks great), but unfortunately, I can't, because I am Jewish and can only eat kosher. Assuming the tea doesn't have any meat in it, making the tea kosher would be extremely easy. Perhaps Adagio could looki into this?
A list of kosher food certifiers in case you are interested: http://www.kashrut.com/agencies/
May I note that the Kof-K, one of the largest and most respected certifiers, is located right in New Jersey?
Have a good day.