September 1939 brought a huge loss to the brewery. Several bombardments led, amongst others to damage of boiler room. After taking over the capital, by the occupying force in October 1939 a commissary was appointed. The prices of beers and lemonades were set, the amount of production was fixed, and increases in the wages and hourly rates of employees were prohibited. Only a small part of the production was destined for the Polish market, and the lion share went to wholesalers in the General Government. The company continued production under its current management. The director discreetly employed members of the underground sought by the Germans, by falsifying documents. Help was given to Polish artistes and actors. The brewery had become a new home for nearly 500 people who had fled the fighting front. The company helped them by sharing among other things coffee and sugar. Through the dividing wall of the brewery, which was adjacent to the ghetto, food and material aid was given to the Jews. Zofia and Aleksander Schiele, who were involved in helping the ghetto and its victims, were posthumously awarded the “Righteous Among the Nations” Medal by the Israeli Yad Vashem Institute in 2015.
In the autumn of 1943 the Germans detained the director of the factory Aleksander Schiele and his 19-year-old son Jerzy. They were imprisoned in the Pawiak jail. They were brutally beaten and questioned. At some point, Aleksander was released. However, the Gestapo had evidence that proved Jerzy was active in the Home Army conspiracy. Heinrich Himmler’s personal order was that he be shot. It was supposed to be an example for others of German descent who considered themselves Poles and did not want to sign the “volkslist”.