The chemistry of craveability
The global assembly line
The magic of the Speedee System
The psychology of the Happy Meal
YOUR GOAL
Master of The secret science of the McDonald's cheeseburger
donnie A mid-century businessman stands with children holding cheeseburgers on a colorful background.
donnie A simple cheeseburger wrapped in yellow-and-white paper sits next to a red cardboard box
donnie Build burgers against the clock to master the recipe of a classic cheeseburger.
Tennis court test: The McDonald brothers spent hours watching employees run around a chalk-drawn kitchen on a tennis court to design the perfect assembly line.
A sequence of machines, tools, and workers in a factory where a product is built progressively. In 1948, the McDonald brothers adapted this factory method to their San Bernardino kitchen, preparing hamburgers rapidly.
What was the price of a standard McDonald's hamburger when the Speedee Service System launched in 1948?
In what year did the McDonald brothers shut down their drive-in to launch the 'Speedee Service System'?
What tool did the McDonald brothers invent to ensure the exact same amount of ketchup was put on every burger?
Who was the milkshake machine salesman who bought the franchise rights to McDonald's in 1954?
Why did the McDonald brothers eliminate car-hop waitresses from their drive-in restaurant?