According to a representative of one budget milk tea brand, the VND7,000 starting price is made possible by four main factors: simple packaging, streamlined operations, bulk ingredient purchasing and a focus on customer experience rather than advertising. Simple packaging means using standard plastic cups and a thin film seal, which are cheap but safe. Streamlined operations reduce staff time and equipment needs, keeping labour costs down.

The same representative said ingredients and packaging for a VND7,000 cup cost about VND5,000 ($0.19). To save on rent, shops keep premises small, limit seating and often serve customers through a street‑facing counter or a takeaway window. This layout lets customers stop their motorbikes, order, and collect the drink without entering the shop, further cutting overhead.

Customers often pay more than the advertised starting price. Adding toppings such as tapioca pearls, jelly or pudding, or choosing a larger cup, can raise the total bill to VND15,000‑20,000 ($0.57‑$0.76).

The ultra‑low price of Hanoi’s budget milk tea is achieved by cheap packaging, efficient shop design, bulk buying and a focus on quick takeaway service, while optional extras increase the final cost. This model shows how careful cost control can make drinks affordable for students and young consumers.