Biodegradable bags are plastic, but possess non-plastic materials that become contaminants in the recycling stream. Put them in your garbage instead.
Not all biodegradable objects are compostable. Research has shown that if you try to put biodegradable bags in a compost pile, they will stop breaking down before they finish degrading. To be safe, put them in your garbage.
Ways to Reduce
Use Reusable Bags
Even if a bag is truly biodegradable, it’s always better to reuse it than to use it once and throw it away.