The boba pearls in the drink are made from cassava, a known source of the heavy metal Bubble tea is often made with tea, milk, sweetener, and boba. By Kevin Loria Bubble tea is everywhere. In plenty ...

That photogenic cup of bubble tea may come with hidden downsides. Tapioca pearls made from cassava can absorb heavy metals like lead, and in large amounts they may slow digestion or even cause ...

Qun and richard ferreira opened a bubble-tea shop in Middlesbrough, in north-east England, in 2022. “To my knowledge, it was the first one in Teesside,” says Mr Ferreira. Since then at least five ...