The project was a long term information campaign targeted at the middle and high schools at Halmstad municipality, Sweden. Within the campaign the food was weighed four times (January 2009, May 2009, October 2009 and a control in November 2010). The campaign was designed as a contest between the schools where the one throwing away the least at each weighing won.
On average the schools reduced their waste with 13 %. Controls also show that the reduction seems to be permanent.
