Jay Rayner hosts the culinary panel show. Dr Annie Gray, Jordan Bourke, Rachel McCormack and Tim Anderson join from their kitchens to answer questions sent in by email and social media.This week, the panel shares ideas for the perfect summer Sunday lunch, discusses the history and many uses of the grater, and comes up with ideas for making use of homegrown courgettes.Producer: Hannah NewtonAssistant Producer: Jemima RathboneA Somethin' Else production for BBC Radio 4