 The amount of new additions, several new sandwiches made with disparate ingredients was made possible due the design of Burger King's kitchen.The chain's kitchen is modeled around a more flexible concept that allows for a multiple work-flow operations where preparation stations can be re-tasked more easily.In comparison, McDonald's kitchen at the time was a more rigidly designed assembly line concept intended to quickly produce a more uniform product and was not easily adapted to new products.