Returning, sorting and recycling packaging materials is a must today - even for retailers. These materials often include used PET bottles and containers as well as large quantities of cardboard packaging. Genossenschaft Migros Zurich ranking among the largest retail companies in Switzerland operates a recycling plant which enables resource-friendly disposal of these enormous amounts of packaging waste. In doing so, they rely on Baumer optical sensors. A total of 60 SmartReflect sensors and five O500 sensors support the functional safety of the largely automated sorting and waste disposal system.