Sashi Cheliah

The contestants are in for a huge surprise when the judges reveal that it is survival week and the remaining competitors must cook to stay each day.

The top 24 try to stand the heat in the kitchen, with 90 minutes and an open pantry to cook their dishes and impress the judges, focusing on hospitality.

Chloe's cucumber with smoked labneh is one of the standout dishes of the day as the contestants cook at Melbourne's Luminare.

Survival week's remaining contestants learn about decision making under pressure when they must decide which is more important to them, ingredients or time.

The latest elimination challenge takes place at Nitmiluk National Park, with dishes including pork belly, barramundi cod, a buttermilk-set custard and kangaroo fillets.

Chefs face a three-round sudden death skills challenge. They have to dice vegetables using a brunoise cut, prep a hollandaise sauce and cook a salted caramel sauce.