Bubble tea is booming in Britain, with a Taiwanese chain planning to open 500 new branches across the UK to capitalise on the trend. The drink, also called boba tea, originated in Taiwan in the 1980s.

Bubble tea is a kind of drink, generally sweet and peculiarly textured. It was invented in Taiwan in the late 20th century and has spread to the rest of the world. In Britain, bubble tea is also a ...