Can changing your surroundings alter how food and drink tastes? Prof Alice Roberts and a group of diners enjoy a culinary experience with a difference. The music, lighting and even the shape of the plates are changed throughout the meal to see what effect this has on how we perceive the taste of food. Sensory gastronomy is a new field of scientific research and although it may sound unfamiliar, its findings have practical applications. Alice takes a closer look at peanut butter - is it a health food or a junk food? Alice investigates the science behind this popular spread. Nutritional labels on food packaging are designed to help us make healthy choices at a glance. But as our consumer journalist Sean Fletcher has found, they can be confusing. Sean investigates why a system intended to help us choose healthy food is often doing exactly the opposite. With the help of food scientists and a panel of taste testers our consumer journalist Sean Fletcher investigates the ingredients in the bread. Will Budget, Premium or Standard come out on top? Chef Tom Kerridge travels the country to help viewers with their kitchen fails. This time it's how to cook the perfect steak, Tom's also teaching us the secret to perfect roasties, every time, as well as revealing another couple of his trade secrets. How to transform a simple piece of fish into something any professional chef would be proud of, and how to make the perfect gravy.