World War II – the original recipe flees to the United States – Communism in Hungary
During World War II, Budapest suffered immense losses, becoming one of the most heavily bombed cities in Europe, and the Zwack distillery was reduced to rubble.
In 1945, amidst the ruins, the Zwack family resumed work in two rooms. Simultaneously, they began the reconstruction and modernization of the factory. By the time the facility was fully restored to its pre-war condition, it was autumn 1948 when it was nationalized without compensation.
The advance of communism was a risky period for Hungary's industrial elite.
Zwack János put his son, Péter, on a train heading towards the Yugoslav border, uncertain if they would ever see each other again. Young Péter disembarked before the border and continued on foot, walking by night and hiding by day until he reached the port of Trieste in Italy.
Soon after, his father left the country under adventurous circumstances, bribing the driver of a Soviet military truck and traveling under an overturned oil drum with only one thing in his breast pocket—the recipe for Unicum.
Béla and his wife decided to stay in Hungary. Béla found work as an employee at the Zwack distillery, overseeing the production of Unicum.
Naturally, he did not reveal the original recipe for Unicum; instead, he handed over a false recipe.
Later, he and his wife were deported to the countryside, like many other "class enemies" at the time.
János and his son, Péter, were reunited in Italy, from where they sailed to the United States, where they were interned as stateless refugees at Ellis Island. Later, Péter's mother, Vera, joined them in New York.
In the mid-1950s, Béla and his wife managed to emigrate to Italy, where they began the real production of Unicum, introducing the drink nationwide at trade fairs.