1. Bones
They’ll just keep spinning around and around with the blades. And if you’re lucky enough to get them down, they definitely won’t make it down the drain pipes.
2. Celery
The fibrous strings tend to tangle around your disposal’s blades. This same rule applies to asparagus and corn husks.
3. Coffee Grounds
4. Egg Shells
There’s a bit of argument on this one. Some people say they’re totally safe for the disposal and actually help to sharpen your disposal’s blades; while others believe the shells’ membrane lining can stick to the sides of the disposal and wrap around the shredder, wreaking lots of havoc.
5. Fruit Pits
7. Pasta