Elena Duggan

Contestants compete in the Quarter Final challenge using ingredients chosen by loved ones, cooking off for a place in the Semi Final.

The bottom three contestants face-off in the elimination pressure test; they must recreate two of guest chef Ross Lusted's signature dishes in two hours.

The top contestants open four Heston Blumenthal-inspired and supervised pop-up restaurants in four days; begin with galaxy-inspired dishes in a revolving restaurant.

Contestants face an off-site challenge at George Calombaris' Hellenic Republic restaurant. Divided into two teams, they must prepare a three-course feast for 120 guests to avoid elimination.

The contestants are tasked with a tougher than usual mystery box challenge where they must use every ingredient provided.

The contestants from the losing pub lunch challenge team must correctly name an ingredient to avoid the elimination cook-off challenge, as the contestant with the least impressive dish will go home.