This week's heat continues with the four celebrities battling for a semi-final place.
The first challenge involves two contesants teaming up to create a main course and pudding. However, one takes over the work of the other without any verbal communication, before the two come together at the final stage.
Following that, still paired up, they must prepare lunch for over a hundred staff at Vigin Atlantic's training centre, making meat and vegetarian dishes plus dessert in high volume.
Finally, back at HQ, the chefs cook a two-course meal to be judged not only by Greg and John, but the reigning competition champion as well as two previous finalists.
