"All the cooks were really tough and at this point of time in the competition, we've cooked more than anyone else," Mick tells New Idea.
"We've been in more eliminations and that really adds to the stress levels."
While the married couple say the competition was taking its toll on them, they reveal that there were other teams who were struggling even more.
"We know that some people wanted to crack at this point," Mick explains.
"I won't say who but they were at breaking point.
"There were a couple of contestants we talked into staying.
"We told them not to give in because two weeks later they would have been sitting at home, regretting it.
"We were struggling ourselves. It was back-breakingly hard, borderline impossible."
For more reality TV goss, listen to the newest episode of reality TV podcast Real Talk with Holly & Ali below.