Ben Borsht

The contestants arrive at the Dandenong Ranges for the team challenge. They must prep a three-course meal using open-fire cooking in two hours for 60 Victorian firefighters.

The contestants are given 60 minutes to make a dish with one loaf of bread as the mystery box ingredient. Plus, a reinvention test involves spaghetti bolognese ingredients.

It is the first mystery box challenge, with one contestant choosing eight ingredients for chefs to cook from and make a dish in 75 minutes.

In the latest pressure test, the bottom three contestants have to recreate Alla Wolf-Tasker's Autumn-inspired duck dish.

The contestants visit Maggie Beer's Eatery in the Barossa Valley for their elimination challenge, and participate in a masterclass at the Adelaide Markets.

In the Immunity Challenge, contestants make a simple dish using eggs and their choice of pantry items, with the winner competing against the Young Chef of 2018.