Sunshine in a Glass

S5, E4: A scientist and businessman team up to develop a Vitamin C rich war ration for the troops fighting in World War 2, which unexpectedly leads to the development of a frozen concentrated orange juice that tastes great and allows for the widespread distribution of OJ for the first time in history. Soon after, a fruit salesman develops a process of flash pasteurizing fresh orange juice that turns the fledgling industry on its head. The two companies will go on to battle it out for the domination of American breakfast tables.