Why Does the U.S. Sell Soda in Liters but Milk in Gallons?

In America, many products -- including milk -- are sold in imperial ounces or gallons. But not so soda -- we often buy that in 1- or 2-liter bottles. Learn why in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com