Virgins

While I am made just as uncomfortable by the cultural and social implications of Burger King's new Whopper Virgins campaign as its many detractors...my question is, how did they make the Big Macs? They show how they made the Whopper but they don't explain how they took the care to make sure they made the Big Mac comparably to how it would be made in a McDonald's. (Yes, I know, "care" might be the wrong word.)