The Food waste-battle is a popular concept in Finnish schools were 9th grade students learn how to prepare food from leftover ingredients, facts about food waste and to respect food. In the Food waste-battle students in home economics elective groups got food that otherwise would have been thrown away from the store. In home economics class students turned the random ingredients classed as food waste into two-course meals learning to take liberty from recipes. At the same time the students learned about food waste and how to minimize it. In autumn 2018, 100 schools across Finland signed up to the Food waste-battle and the concept reached over 6600 9th grade students. The battle culminated in an Instagram competition where students could publish pictures of their food waste meals with #hävikkibattle2018.