Superfest, also called CV-Glas or Ceverit until 1980, was a brand of drinking glasses in the GDR. Due to being made of chemically strengthened glass, they were notably strong. The Superfest glasses were produced between 1980 and 1990 in what was then state-owned Sachsenglas Schwepnitz.
The GDR regarded the product as a key potential export and gave it priority for development. However, foreign sales were not secured, as potential buyers regarded the idea of long-life glassware as detrimental to ...