After the War, both breweries were nationalised and commenced their post-war history as national enterprises. It was not an easy time for breweries – Socialist Czechoslovakia was focused exclusively on the development of heavy industry and mining. Many qualified labourers and specialists left for better-paid positions elsewhere and the situation was exacerbated by complications in obtaining financing for capital investment projects.
At Staropramen Brewery, annual production grew despite all the above, without making any concessions in beer quality. In 1960 the brewery's annual production volume exceeded 1,000,000 hecto-litres. Until the end of the 1980s, the enterprise was developed primarily as a supplier of beer for Prague and its
Ostravar Brewery after the War was re-built and modernised in several phases it became the principal supplier of beer for the area of North Moravia.