Danube Tower Partner: Bluen - innovative farmers
Blün not only supplies Viennese private households with local fish and vegetables, but also supplies well-known restaurateurs with Viennese catfish. Fish and vegetables come from the company's own aquaponics facility.
Personal contact with partners is an essential part of the Donauturm management team. Therefore, our purchasing manager Jürgen Fraller visited the Blün company in July. After a warm welcome, he was guided through the entire plant and could personally convince himself of the high quality.
Bluen- innovative farmers
The company Blün is located in the 22nd district of Vienna, there are 3 criteria that each of their products must meet:
It is produced in the 22nd district near the Donauturm with a short transport route.
Each of the products can be traced back.
Blün works with biological and technical cycles that complement each other, i.e. if valuable nutrients that a product gives off can no longer be used itself, then they are used in another product that needs them.
Blün not only supplies Viennese private households with local fish and vegetables, but also supplies well-known restaurateurs with Viennese catfish. Fish and vegetables come from the company's own aquaponics facility.more information
What is aquaponics?
Aquaponics refers to a process that combines techniques of raising fish in aquaculture and cultivating crops in hydroponics.
In this form of aquaculture, the waste water is used to fertilise the vegetables. Fish and vegetable production are, so to speak, combined.
The Vienna catfish come as "baby fish" from a breeder near Lake Neusidl. The fish live in a separate room in the nursery for six or nine months until they can be slaughtered.
The water is constantly circulated through a biofilter and fresh water is added daily. The pumped-off water is used for watering and fertilising the vegetables.
Melanzani, cucumbers, tomatoes, peppers and chillies are cultivated in the 400 m2 vegetarian part of the facility. Harvesting is possible 35 weeks a year. The harvest amounts to about ten tonnes of vegetables per year.
Nothing is thrown away: if there are too many tomatoes, they are used to make ketchup.