In Norrbotten, large parts of the food waste goes to the biogas plant in Boden where they do not become compost but biogas. This means that several things that are otherwise thrown into the compost should instead go into combustible.

The bags now say that eggs should be thrown away with the food waste but it destroys the biogas plant.

"The eggshells cause problems in the tubes. They blast the pipes from the inside," says Maria Nyström, head of the waste unit in Boden.

New bags on the way

The text on the bags that exist in many municipalities right now is based on the fact that it goes to compost, which is not true in Norrbotten. Work is underway between the municipalities to develop new bags with accurate information.

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In the clip, waste expert Maria Nyström lists five things you must not throw away among the food waste. Photo: Staffan Claesson/Adam Berlin/SVT