Worcester is the largest district and produces about a quarter of South Africa's volume. It is known for the brandies distilled here and includes a KWV Cellar and Oloff Berg Solera Cellar. Some of the major cellars in this area are:    Slanghoek Wine Cellar    Nuy Wine Cellar    Brandvlei Wine Cellar    Bergsig Estate  and Du Toitskloof Wine Cellar .