Bang Goes The Theory: Season 7, Episode 5

7 - 5:

The team take a look at the food industry, as the horsemeat scandal remains in people's minds. Maggie learns how scientists use DNA to identify exactly what is in ready meals and also asks how much food is actually a product of the laboratory. Liz finds out about the science behind flavour and taste. Jem takes a look at how old food is kept looking deceptively fresh on the shelf.