Now a similar concept is being explored at a handful of Universities—if trays aren't available in the cafeterias, would students be less likely to take more food than they can eat? The answer, after a series of informal tests, appears to be a resounding yes. Alfred University, in New York, has gone completely trayless after discovering that food and beverage waste decreased by 30 to 50 percent on days when trays weren't available. The thinking makes a good deal of common sense. If you don't have the room to carry it, you'll be less likely to take it.