Eric Litvin shares the latest NPR Business News : Episode 544: The M&M Anomaly

Episode 544: The M&M Anomaly
David Kestenbaum noticed that a pack of Milk Chocolate M&M's weighs 1.69 ounces, but a pack of Peanut Butter M&M's weighs 1.63 ounces. He had to know why. But the confectionary world has its secrets.

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