Emily has discovered a company in Cornwall that grows and blends Earl Grey tea.

BBC: Can a family survive for a year on British-made goods?

Tea marketer Twinings also felt the backlash of public discontent over changes to its 180-year-old Earl Grey tea in April 2011.

BBC: The recipe rage problem

Extracted from the rind, the oil is blended into many perfumes and is a key ingredient in Earl Grey tea.

WSJ: Bergamot Is No Lemon

Then the leaves are rolled to bruise them, chopped, oxidised and slow-dried before being blended into Classic Tea, Afternoon Tea, Earl Grey and Green Tea.

BBC: Twenty tastes of Britain

Since Marcolini began making single estate chocs, combining them with ingredients like Earl Grey tea, that fashion has swept through the chocolate making business.

FORBES: Why The Apple vs Samsung Verdict Is A Big Mistake

Initially refusing to capitulate to Earl Grey purists, only four months later the tea company reintroduced the original under a new label - Earl Grey The Classic Edition.

BBC: The recipe rage problem

He also serves coffee often Turkish coffee with spices like cardamon and mint tea, which he makes by brewing a black tea such as Earl Grey with fresh mint leaves.

WSJ: Owner of Max Brenner's on How to Entertain Guests for Breakfast

"I'll have an Earl Grey, " said mentor Victoria Briggs, 30, and after a confused look from Mrs Chowdhury there are giggles between the pair as Victoria says actually a tea with milk will do fine.

BBC: London project gives immigrants lessons in being British