Tell me about this drink from Teaism? -

This is just for people who live in the D.C. Area and go to the restaurant Teaism. I just got their drink Zhenzou Pearls which I found out is a bubble tea drink popular in China. I wanted to know how I can make this at home, and if anyone knows what kind of tea they use at Teaism to make this drink...All I know is that its fantastic LOL, and I tried asking at the restaurant what kind of tea it is, but none of the wait staff (mostly Hispanics) knew what kind it was. So...any clues? I know this is a long shot, but I got no where else to turn

Teaism sells most or all of the teas that they serve in the restaurant at the tea shop or at the dupont location in the store. I would check their tea menu or ask at the tea shop. I ve always found them very helpful.