5. Pits and Seeds
If you can’t cut it with a knife, it’s safe to say putting it down the disposal is not a good idea. Pits and seeds are often round and small, making them even harder to grind up. Not to mention the terrible racket they make bouncing around your disposal. Save your disposal the trouble and throw them in the trash.
6. Onion Layers
While chopped onions can easily go down the disposal, it’s the outermost layer you need to watch out for. The membrane that lies just beneath the dry skin can pass through the disposal, missing the blades grinder altogether or wrapping around it. It can even get wedged in the drain and act as a net, trapping other items in place with it.
7. Egg Shells
There’s a commonly held misconception that egg shells can help to sharpen the “blades” of your garbage disposal. But the truth is, garbage disposal don’t have blades. Rather, they have impellers that are more blunt than sharp. These impellers grind food waste down, rather than chopping it up like a blender. And anyways, when was the last time you used egg shells to sharpen your knives? Not only do egg shells not serve a purpose in sharpening the grinding mechanisms, but they also have membranes that can easily get wrapped around the grinder. This can create a whole host of problems for you appliance.
