FILMING: Left to right Dr. Helen Lawal joins Farrer’s sales manager and barista trainer Brian Williams A Kendal based roastery has starred on primetime TV after the programme was held back a week due to the death of Prince Philip. Tea and coffee merchants John Farrer & Co, played a starring role on the Channel 4's investigative food programme, Food Unwrapped. The show sets out to explore industry secrets behind the nation's favourite food and drink and was shown a week later than planned. The show aired last night (April 16). During the episode, which was filmed in November 2019, Farrer’s sales manager and barista trainer Brian Williams shows Dr Helen Lawal how to create the perfect espresso and explains the importance of ‘crema’ when it comes to crafting the perfect drink.