Join Heston, Jay and James and they journey to the centre of crisps.  From Frazzles to Walkers, Salt and Shake to the origins of the crisp itself, they explore everything from the multi-sensory power of the world's noisiest crisp bag to the latest in flavouring spraying technology and how to fool your mind to make crisps taste crunchier.   Heston reveals his own experiments making crisp flavours and the debate of the difference between crunchy and crispy rages.  Plus sonic win aging, cheese and ginger combined and the elusive 'full house of reds' search is solved!