Simon Evans Goes To Market

This week it's coffee. How much are we now drinking as a nation? And how much of the price of a cup of coffee is actually the coffee beans? Are we giving coffee growers the best deal when we buy Fairtrade coffee or should we be seeking out Direct trade coffee? And could this be the least harmful of all addictions? Perhaps even a positive addiction, with the coffee shop being, as Steven Johnson said (in his recent 'Where good ideas come from' TED talk), 'a place where ideas can have sex'?