McDonald's Test Kitchen: Where Fast Food Is Born

McDonald's Test Kitchen: Where Fast Food Is Born Play

July 24 (Bloomberg) -- It took four years to make the McGriddle. From concept to counter, McDonald's takes the innovation behind its 145 menu items seriously. Bloomberg Television's Betty Liu takes a tour of McDonald's test kitchen with food scientist and McGriddle inventor Deb McNaniel. (Photos Courtesy: McDonald's Corporation.)

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