The contestants lifted the lids on the first of the day’s tasks: a Mystery Box Challenge. Finding ingredients like blue swimmer crab, eggs and coconuts, the ‘Have a Crack’ theme became apparent. The judges selected Deb’s Upside Down Crab Pudding, Filippo’s Lemon Ciambella Cake and Mindy’s Blue Swimmer Crab Salad to be the best dishes, with Filippo taking the overall victory and the right to select the core ingredient for the Invention Test. For the Invention Test the contestants had to prepare the ultimate sandwich, which included making the bread from scratch, with Filippo choosing tomato as the core element. Mindy’s Murtabak with Tomato and Cucumber Pickle was selected as the best dish, winning her the right to fight for Immunity. As the weakest performers, TK, Lydia and Wade were left facing a Pressure Test and potential Elimination.