VIETNAM'S YOUNG BREW MASTERS

Ditching a lucrative career in finance, Mr Vu Dinh Tu opened a coffee shop without telling his parents and joined a wave of young Vietnamese entrepreneurs using espressos to challenge family expectations around work.

Traditionally taken black, sometimes with condensed milk or even egg, coffee has long been an integral part of Vietnamese culture.

But starting a cafe is not a career that many of Vietnam's growing group of ambitious middle-class parents would choose for their children.

"At first, my family didn't know much about it," said Mr Tu, 32.

"Gradually they found out - and they weren't very supportive." His parents repeatedly tried to convince him to stay in his well-paid investment banking job, but he persevered and opened four branches of Refined over four years in Hanoi.

Each branch is packed from morning till night with coffee lovers enjoying Vietnamese robusta beans, in surroundings more like a cocktail bar than a cafe.

Mr Tu said his parents "saw the hard work involved in running a business - handling everything from finances to staffing, and they didn't want me to struggle".

Vietnam was desperately poor until the early 2000s, pulling itself up with a boom in manufacturing, but many parents want to see their children climb the social ladder by moving into steady, lucrative professions such as medicine and law.

Coffee, on the other hand, has become a byword for creativity and self-expression.