Tricks of the Restaurant Trade is back to lift the lid on the world of eating out, by going behind the scenes at some of the UK's biggest high street chains to show you how to get the best deals on good food. This week, the show spills the beans on high street coffee chains. Chef Simon Rimmer and co-presenter Kate Quilton find out how good the coffee really is and how the big chains ensure it tastes the same wherever you go in the country. And reporter Adam Pearson challenges fans of big brand names to a blind taste test - can they really tell the difference? Plus - how much do you know about what's in railway station snacks? Should you think a little more before you grab a bite to eat before you jump on the train? And the horrible truth about just how many calories there could be in your Chinese takeaway. The answer for one family of four: 15,000 calories in just one meal.