Each cold-brew packet is designed to be refillable for up to ~100oz of water. 

Dianhong 滇红 means "Yunnan Red", is a Chinese black tea which comes from Yunnan, the origin of Black Tea.

It’s considered a relatively high-end gourmet black tea. The main difference between Dianhong and other black teas is the number of fine leaf buds, or "golden tips", present in the tea. Dianhong teas produce a brew that is brassy golden orange in color with a gentle earthy aroma and no astringency. It has a substantial body, and after brewing, it tastes deep and smooth.