University students pass by an unmanned cafe in the University of International Business and Economics, Beijing, Sept 5, 2017. [Photo/VCG]

In Beijing, an unmanned cafe has been put into operation at the campus of the University of International Business and Economics since September.

The cafe, covering 12 sq m, has two self-service coffee vending machines and a bar counter.

Customers can order dozens of drinks including fresh coffee, milk tea and hot chocolate on the machine and check through mobile payment tools.