Hygienic beer caps using UV LED technology

To ensure clean water for high-quality beer, brewing companies often install ultraviolet (UV) systems upstream of their brewing equipment, with the purpose of keeping the drinking water free of germs. Fraunhofer researchers are investigating a greener and more efficient alternative, which uses UV LEDs to destroy bacterial DNA. The technology is also suitable for disinfecting brewing water and for disinfecting the caps for bottled beer, soft drinks and mineral water during the filling process.