Food on the grill now stays there until the cook can take it to the next station. If every prep station is taken, it keeps cooking: after 6 seconds it smokes and is overcooked, and after 15 seconds it burns.
A burnt dish goes in the trash, and the next free cook makes it again. An overcooked dish still goes out, but it's worth less, and the guest notices.
Patties and chicken are now flipped halfway through grilling.
A new resting rack ($25) sits on a counter. A cook can move finished food onto it, freeing the grill while they wait. On Hard a rack won't hold beef and chicken together; on easier difficulties it will.
Dishes cool while they wait at the pass, and steam fades as they do. A dish left long enough loses up to 40% of its quality, and the guest's mood follows.
Easy never burns anything. Medium gives the cooks twice as long before food overcooks, burns or goes cold.
The Performance panel counts overcooked, burnt and cold dishes.
In the default restaurant nothing burns, but about two thirds of dishes cool a little at the pass. In a kitchen with only one prep station, a resting rack raises guests served from 54 to 61 per game.
The clip is staged: every prep station is taken, so the circled cook's burger smokes, then burns, and the cook starts it again. The screenshot shows a burger waiting on a resting rack while the grill is free.