In one of the industrial estates of Essen, in northern Germany, there is a street named Max Keith. It is the way the city has found to remember the man who, in the midst of World War II, had to solve an unexpected problem: German Coca-Cola factories could no longer make Coca-Cola. The trade blockade had cut off the arrival of the concentrate that the company sent from the United States and without that secret syrup, the plants could not operate. Keith, who managed the multinational's German subsidiary, had to find a way to get by.