Producing hand-shaken lemon tea is a booming business on the mainland, with tens of thousands of outlets operating across the country.

Now, the lemon tea trend is taking Hong Kong by storm, with some of the more popular mainland brands expanding into the city.

But what are the challenges and opportunities that come with bringing the mainland business model to Hong Kong? RTHK spoke to some of these chains looking to grab a slice of Hong Kong's market for lemon tea.