Lisa Harris, co-founder of food consultancy Harris & Hayes, says growing interest in sweetcorn is also partly down to the UK's "unstoppable" appetite for South Korean food, which is "changing how we eat".
Pereira has continued to champion corn, recently making a Brazilian lemonade - which uses limes instead of lemons - and pairing it with corn milk.
But Hejazi says its use in drinks and desserts is still "an emerging trend" and hasn't yet hit the mainstream in the UK.
So, is it translating to real-life demand?
We're not yet seeing sweetcorn milk stocked in supermarkets and corn lattes at mainstream coffee chains.
But Natalie TJ, who co-runs an Asian-inspired bakery in London, says her cornmilk matcha drink has been one of the most popular drinks this summer – second only to the bakery's Hong Kong milk tea.
"Many coffee shops in Asia sell corn milk matcha," she says, adding that customers have probably been seeking out the drink at the cafe as it is not as common as other matcha combinations in the UK.

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