Operation of a microbrewery for the revival, maintenance and preservation of the grown brewing culture of Büren/Gansingen. Production of beers with Bürer spring water in joint self-help. The products are to be offered regionally. Within the framework of this purpose, the cooperative can participate in other companies. For the execution of the purpose, the cooperative can cooperate with the competent authorities or other organizations that support it in its goals. The cooperative can also carry out other activities that are related to the purpose of the cooperative or directly or indirectly support it.