Why does takeaway always send iced black tea?

Warmed iced black tea is a miscellaneous brand.

The brand of this drink is called War, and it looks like an iced black tea drink. According to the consumer's feedback, this drink is not very delicious. Some people even think that the ingredients of war include concentrated juice, milk powder, high fructose corn syrup, sugar and so on. The calorimeter shows zero calories, which makes people afraid to try it easily.