A few months ago I received a package in a tea swap, and with the tea came these mysterious chrysanthemum tea crystals. The package does not give much information in English, except to dissolve the crystals in warm or iced water. It also lists the ingredients as chrysanthemum and granulated sugar. The person that gave the crystals to me just said she got them from a friend. She said to add them to tea, or drink them alone.
The cyrstals have a sweet and bitter bite to them. They have a drying effect on the tongue, which reminds me of the tannins in tea. I decided to try them in a cup of basic Yorkshire Gold tea. The crystals give the tea a sweet yet slightly bitter taste. An interesting way to sweeten tea without making it too sweet.
I tried them alone in warm water, and it just takes like sweet water with a very slight bitter note.
I've been doing an online search, and have found a similar product here: