The British "caff" - slang for café, and home of the breakfast fry up, or "full english" - is under threat. Many have closed, struggling to compete with changing tastes and the success of chains. Many of Britain’s historic caffs opened in the 1940s and 50s, run by Italian migrants. Some of these original caffs are still trading, run by second and third generation Italian families. In this programme Ruth Alexander hears stories of the famous caffs that have closed for good, and goes in search of caffs still going. She’s joined by actor Michael Simkins, who has relied on hearty caff fare during a 40-year career in the theatres of London’s West End, and meets actor and director Mark Gatiss, who is finding it increasingly hard to find a good cup of tea in the capital. Ruth visits cafes that have been operating for decades – Bar Bruno in Soho, and Dino’s Café in east London, to learn exactly what their customers love so much about the traditional British caff. Restaurant sector consultant James Hacon describes the changes seen in the hospitality industry in the last twenty years, and why caffs now face such stiff competition. If you would like to get in touch with the programme, email - thefoodchain@bbc.co.uk. Presented by Ruth Alexander. Produced by Beatrice Pickup. (Image: Ernie Fiori proprietor of Dino’s Café at New Spitalfields Market, East London, holding up his tea pot. Credit: BBC)