Food criticism has changed a lot since John Lethlean wrote for publications like The Age and The Australian. Over a 25 year career, John chronicled Australia's shifting tastes, watching dining fads come and go. Ultimately, his career came to an end after one line in a review got him into hot water. 

• Guest: John Lethlean - former restaurant critic and author of Post Script: The good, bad and occasionally ugly bits from a 25 year career in Australian food writing