Did you know that making ice cream is a science? That's Dairy Scientist Phillip Tong's specialty. As a researcher at California Polytechnic State University, it's his job to find ways to improve the process for making ice cream, and to come up with tasty new flavor ideas. He studies other dairy products too, like cheese and milk. What's his favorite ice cream flavor? Espresso! This video is available in both English and Spanish audio, along with corresponding closed captions.