An elephant dung coffee is being sold for £30 a cup.

The first batch of the Black Ivory Coffee - which is made from coffee beans picked out of the dung of 20 Thai elephants - has already sold out, and founder Blake Dinkin believes he's discovered the ideal formula.

The Canadian man - who has splashed out £190,000 developing the product - thinks the unique flavour comes from a gut reaction which takes place inside the beasts after they are fed the coffee beans.