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The document summarizes the results of a survey conducted by students in Edessa, Greece to investigate how restaurants process used cooking oils and whether customers take leftovers home. The survey found that 70% of orders are large or extra large compared to previous years. 40% of restaurants give leftover food to animal protection organizations while 60% are asked to provide doggie bags by customers. Regarding used oils, no restaurants throw them down the drain, while 10 give them to companies that process them for energy production.