In 2026, Berlin-based sake company Go-Sake continues its long-standing commitment to environmental responsibility by once again extending its sponsorship for 20,000 square meters at the Wittwesee biotope, a protected conservation area managed by the NABU-Stiftung Nationales Naturerbe, the charitable foundation of Germany’s Nature and Biodiversity Conservation Union (NABU).
Located in northern Brandenburg within the Stechlin-Ruppiner Land, the Wittwesee is one of Germany’s most ecologically valuable freshwater lakes, known for its exceptionally clear, nutrient-poor water and its high level of biodiversity.
The lake and its surrounding wetlands, reed belts, and shallow water zones form a sensitive ecosystem that supports rare underwater plant species such as stoneworts, serves as an important breeding and resting site for numerous bird species including great crested grebes, bitterns, reed warblers, and cranes, and plays a crucial role in natural water filtration and groundwater recharge.
For Go-Sake, this project is a natural choice, as water is one of the most essential elements in sake brewing, influencing fermentation, aroma, texture, and overall quality, while also shaping centuries-old regional brewing traditions in Japan. Protecting pristine water ecosystems is therefore inseparable from preserving the cultural foundation of sake itself. The Wittwesee biotope exemplifies this connection, as its intact natural structure helps stabilize water quality, maintain healthy water cycles, and safeguard aquatic habitats against increasing environmental pressures such as climate change and pollution.
By supporting this NABU conservation project, Go-Sake contributes to long-term ecological preservation rather than short-term interventions, aligning its environmental engagement in Europe with the values of the independent Japanese breweries it represents, all of which rely on clean and balanced natural water sources. The continued sponsorship in 2026 reflects Go-Sake’s conviction that companies benefiting from natural resources carry a responsibility to protect them, making the Wittwesee not only an ideal conservation project but a meaningful expression of the brand’s respect for water as the foundation of sake.