Southwest Finland waste inspections reveal 10% composting failure rate

Inspections conducted by the Southwest Finland Waste Management Board this summer revealed that approximately 10 percent of inspected households failed to meet bio-waste composting requirements. The inspections covered roughly 200 properties across Masku, Naantali, Raisio, Salo, and Turku to ensure compliance with waste legislation changes that made bio-waste sorting mandatory for residents in larger urban areas.

The most common reasons for failure included properties lacking a composter despite having filed a composting notification, and using composters designed only for garden waste rather than food waste. Many inspected composters were found to be unused, newly purchased, or minimally utilized, meaning bio-waste continues to be disposed of with mixed waste.

Failure rates varied by municipality; for instance, Naantali saw a rejection rate of approximately 24 percent, while Turku's rate was slightly below 3 percent. Other areas like Masku, Raisio, and Salo reported rejection rates between 10 and 15 percent. Officials noted that proper bio-waste sorting can help households reduce waste management costs by extending the interval between mixed waste pickups.