A New form of "Instant Tea"

That seems interesting. They have to use sweetener anyway coz most people can’t drink much cold tea without the sweet. Bad for the stomach anyways.

New toy.

Clever!

maybe that is like tea concentrate. many chinese manufacturers make tea concentrate of different taste flavor. taiwan manufacturers make many well selling tea concentrate bottled products for use in bobo cha tea counters. some with real tea, some with artificial tasting matters. this product in website may use one of those tea concentrates. good interest stopper design. 

The many “new” style “tea” bars in malls and shopping streets throughout the Greater China area that cater for youngsters with large paper cups of cold “tea” drinks prepare their products with tea concentrates that may or may not contain some tea extracts. They all would add some form of sweeteners and all sorts of funny ingredients as gimmicks. So this bottled version is certainly making a supermarket version of such “tea” bars. The aeration is done in the water, not in the cap which contains the concentrate. When you add an ingredient with some force into aerated water it gives bubbles, so giving you the illusion of the aeration is from the cap.