I just dump them and the paper filter in the trash. They will degrade in the landfill most likely. My mom used to compost hers but stopped composting when she opened the container in her kitchen to add something and discovered maggots.
Originally Posted by
kipper
The reasoning for the ziploc bag method is so that moisture from the grounds doesn't get into the garbage and potentially leak.
Sounds like a great way to create more waste. If one's garbage bags are leaking, then either buy better bags that don't tear or be more careful about throwing away sharp, pointy things.