This week's episode is all about pickled and fermented food.  We start our journey in Osaka and an eye-opening encounter with the wonders of the Japanese convenience store. We then drop into a kimchi making class, run by Nick Vadasz, the king of pickles and ferments and we hear how Nick's Hungarian heritage shaped his love of briny delicacies. 

Presenter: Elizabeth Hotson
Producer: Elizabeth Hotson
Picture: Getty Images